Brazil NCM · 4-digit heading

NCM 29.33 – Heterocyclic compounds, nitrogen hetero-atoms only

About NCM heading 29.33

Heterocyclic compounds with nitrogen hetero-atom(s) only

Heading 29.33 of Brazil's NCM has 253 eight-digit codes. Official Portuguese description: Compostos heterocíclicos exclusivamente de heteroátomo(s) de nitrogênio (azoto).

The first four digits, 2933, identify this heading within chapter 29. Its six-digit subheadings follow the international HS system; the final two digits distinguish Mercosur's NCM classifications. Select a code below to read its English translation, official Portuguese text and full classification path.

For product coverage and classification context, read the HS heading 29.33 guide.

NCM codes in heading 29.33 253

  1. 2933.1 Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure: Compostos cuja estrutura contém um ciclo pirazol (hidrogenado ou não) não condensado:
  2. 2933.11 Heterocyclic compounds; with nitrogen hetero-atom(s) only, containing an unfused pyrazole ring (whether or not hydrogenated) in the structure, phenazone (antipyrin) and its derivativesFenazona (antipirina) e seus derivados HS code
  3. 2933.11.1 1-Phenyl-2,3-dimethyl-5-pyrazolone-4-methylaminomethanesulphonic acid and its salts Ácido 1-fenil-2,3-dimetil-5-pirazolona-4-metilaminometanossulfônico e seus sais
  4. 2933.11.11 Dipyrone (metamizole sodium)Dipirona
  5. 2933.11.12 Magnopyrol (magnesium dipyrone)Magnopirol (dipirona magnésica)
  6. 2933.11.19 Noramidopyrine methanesulphonic acid, other saltsOutros
  7. 2933.11.20 Methylene-bis(4-methylaminoantipyrine)Metileno-bis(4-metilamino-1-fenil-2,3-dimetil)pirazolona
  8. 2933.11.90 Other phenazone (antipyrin) and its derivativesOutros
  9. 2933.19 Heterocyclic compounds; with nitrogen hetero-atom(s) only, containing an unfused pyrazole ring (whether or not hydrogenated) in the structure, other than henazone (antipyrin) and its derivativesOutros HS code
  10. 2933.19.1 Phenylbutazone and its salts Fenilbutazona e seus sais
  11. 2933.19.11 Phenylbutazone calciumFenilbutazona cálcica
  12. 2933.19.19 Phenylbutazone and salts other than calciumOutros
  13. 2933.19.90 Other unfused pyrazole ring compoundsOutros
  14. 2933.2 Compounds containing an unfused imidazole ring (whether or not hydrogenated) in the structure: Compostos cuja estrutura contém um ciclo imidazol (hidrogenado ou não) não condensado:
  15. 2933.21 Heterocyclic compounds; with nitrogen hetero-atom(s) only, containing an unfused imidazole ring (whether or not hydrogenated) in the structure, hydantoin and its derivativesHidantoína e seus derivados HS code
  16. 2933.21.10 IprodioneIprodiona
  17. 2933.21.2 Phenytoin and its salts Fenitoína e seus sais
  18. 2933.21.21 Phenytoin and its sodium saltFenitoína e seu sal sódico
  19. 2933.21.29 Other phenytoin saltsOutros
  20. 2933.21.90 Other hydantoin and its derivativesOutros
  21. 2933.29 Heterocyclic compounds; with nitrogen hetero-atom(s) only, containing an unfused imidazole ring (whether or not hydrogenated) in the structure, other than hydantoin and its derivativesOutros HS code
  22. 2933.29.1 Containing a nitroimidazole ring in the structure Cuja estrutura contém um ciclo nitroimidazol
  23. 2933.29.11 2-Methyl-5-nitroimidazole2-Metil-5-nitroimidazol
  24. 2933.29.12 Metronidazole and its saltsMetronidazol e seus sais
  25. 2933.29.13 TinidazoleTinidazol
  26. 2933.29.19 Other nitroimidazole ring compoundsOutros
  27. 2933.29.2 Containing a chlorinated benzene ring in the structure, other than those containing a nitroimidazole ring Cuja estrutura contém um ciclo benzeno clorado, exceto os que contenham um ciclo nitroimidazol
  28. 2933.29.21 Econazole and its nitrateEconazol e seu nitrato
  29. 2933.29.22 Miconazole nitrateNitrato de miconazol
  30. 2933.29.23 Clonidine hydrochlorideCloridrato de clonidina
  31. 2933.29.24 Isoconazole nitrateNitrato de isoconazol
  32. 2933.29.25 ClotrimazoleClotrimazol
  33. 2933.29.29 Other imidazoles with chlorinated benzene ringOutros
  34. 2933.29.30 Cimetidine and its saltsCimetidina e seus sais
  35. 2933.29.40 4-Methyl-5-hydroxymethylimidazole and its salts4-Metil-5-hidroximetilimidazol e seus sais
  36. 2933.29.9 Other Outros
  37. 2933.29.91 ImidazoleImidazol
  38. 2933.29.92 Histidine and its saltsHistidina e seus sais
  39. 2933.29.93 Ondansetron and its saltsOndansetron e seus sais
  40. 2933.29.94 1-Hydroxyethyl-2-undecanoylimidazoline1-Hidroxietil-2-undecanoilimidazolina
  41. 2933.29.95 1-Hydroxyethyl-2-(8-heptadecenoyl)imidazoline1-Hidroxietil-2-(8-heptadecenoil)imidazolina
  42. 2933.29.99 Other unfused imidazole ring compoundsOutros
  43. 2933.3 Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure: Compostos cuja estrutura contém um ciclo piridina (hidrogenado ou não) não condensado:
  44. 2933.31 Heterocyclic compounds; containing an unfused pyridine ring (whether or not hydrogenated) in the structure, pyridine and its saltsPiridina e seus sais HS code
  45. 2933.31.10 PyridinePiridina
  46. 2933.31.20 Pyridine saltsSais
  47. 2933.32.00 Piperidine and its saltsPiperidina e seus sais
  48. 2933.33 Heterocyclic compounds; containing an unfused pyridine ring (whether or not hydrogenated) in the structure, alfentanil (INN), anileridine (INN), bezitramide (INN), bromazepam (INN), carfentanil (INN), difenoxin (INN), diphenoxylate (INN), dipipanone (INN)Alfentanila (DCI), anileridina (DCI), bezitramida (DCI), bromazepam (DCI), carfentanila (DCI), cetobemidona (DCI), difenoxilato (DCI), difenoxina (DCI), dipipanona (DCI), fenciclidina (DCI) (PCP), fenoperidina (DCI), fentanila (DCI), metilfenidato (DCI), pentazocina (DCI), petidina (DCI), intermediário A da petidina (DCI), pipradrol (DCI), piritramida (DCI), propiram (DCI), remifentanila (DCI) e trimeperidina (DCI); sais destes produtos HS code
  49. 2933.33.1 Alfentanil and anileridine; salts thereof Alfentanila e anileridina; sais destes produtos
  50. 2933.33.11 AlfentanilAlfentanila
  51. 2933.33.12 AnileridineAnileridina
  52. 2933.33.19 Salts of alfentanil and anileridineOutros
  53. 2933.33.2 Bezitramide and bromazepam; salts thereof Bezitramida e bromazepam; sais destes produtos
  54. 2933.33.21 BezitramideBezitramida
  55. 2933.33.22 BromazepamBromazepam
  56. 2933.33.29 Salts of bezitramide and bromazepamOutros
  57. 2933.33.3 Carfentanil and ketobemidone; salts thereof Carfentanila e cetobemidona; sais destes produtos
  58. 2933.33.31 CarfentanilCarfentanila
  59. 2933.33.32 KetobemidoneCetobemidona
  60. 2933.33.39 Salts of carfentanil and ketobemidoneOutros
  61. 2933.33.4 Diphenoxylate and its salts Difenoxilato e seus sais
  62. 2933.33.41 DiphenoxylateDifenoxilato
  63. 2933.33.42 Diphenoxylate hydrochlorideCloridrato de difenoxilato
  64. 2933.33.49 Other diphenoxylate saltsOutros
  65. 2933.33.5 Difenoxin and dipipanone; salts thereof Difenoxina e dipipanona; sais destes produtos
  66. 2933.33.51 DifenoxinDifenoxina
  67. 2933.33.52 DipipanoneDipipanona
  68. 2933.33.59 Salts of difenoxin and dipipanoneOutros
  69. 2933.33.6 Phencyclidine, phenoperidine and fentanyl; salts thereof Fenciclidina, fenoperidina e fentanila; sais destes produtos
  70. 2933.33.61 Phencyclidine (PCP)Fenciclidina
  71. 2933.33.62 PhenoperidineFenoperidina
  72. 2933.33.63 FentanylFentanila
  73. 2933.33.69 Salts of phencyclidine, phenoperidine, fentanylOutros
  74. 2933.33.7 Methylphenidate and pentazocine; salts thereof Metilfenidato e pentazocina; sais destes produtos
  75. 2933.33.71 MethylphenidateMetilfenidato
  76. 2933.33.72 PentazocinePentazocina
  77. 2933.33.79 Salts of methylphenidate and pentazocineOutros
  78. 2933.33.8 Pethidine, pethidine intermediate A and pipradrol; salts thereof Petidina, intermediário A da petidina e pipradrol; sais destes produtos
  79. 2933.33.81 PethidinePetidina
  80. 2933.33.82 Pethidine intermediate AIntermediário A da petidina
  81. 2933.33.83 PipradrolPipradrol
  82. 2933.33.84 Pethidine hydrochlorideCloridrato de petidina
  83. 2933.33.89 Other pethidine/intermediate A/pipradrol saltsOutros
  84. 2933.33.9 Piritramide, propiram, remifentanil and trimeperidine; salts thereof Piritramida, propiram, remifentanila e trimeperidina; sais destes produtos
  85. 2933.33.91 PiritramidePiritramida
  86. 2933.33.92 PropiramPropiram
  87. 2933.33.93 TrimeperidineTrimeperidina
  88. 2933.33.94 RemifentanilRemifentanila
  89. 2933.33.99 Salts of piritramide, propiram, remifentanil etcOutros
  90. 2933.34.00 Other pyridine-ring fentanyls and derivativesOutras fentanilas e seus derivados
  91. 2933.35.00 Quinuclidin-3-ol (3-quinuclidinol)Quinuclidin-3-ol
  92. 2933.36.00 4-Anilino-N-phenethylpiperidine (ANPP)4-Anilino-N-fenetilpiperidina (ANPP)
  93. 2933.37.00 N-Phenethyl-4-piperidone (NPP)N-Fenetil-4-piperidona (NPP)
  94. 2933.39 Heterocyclic compounds; containing an unfused pyridine ring (whether or not hydrogenated) in the structure, n.e.c. in 2933.3Outros HS code
  95. 2933.39.1 Containing covalently bonded fluorine, bromine or both in the structure Cuja estrutura contém flúor, bromo ou ambos, em ligação covalente
  96. 2933.39.12 DroperidolDroperidol
  97. 2933.39.13 Niflumic acidÁcido niflúmico
  98. 2933.39.14 HaloxyfopHaloxifop (ácido (RS)-2-(4-(3-cloro-5-trifluorometil-2-piridiloxi)fenoxi)propiônico)
  99. 2933.39.15 HaloperidolHaloperidol
  100. 2933.39.19 Other fluorinated/brominated pyridine compoundsOutros
  101. 2933.39.2 Containing covalently bonded chlorine, but not fluorine or bromine, in the structure Cuja estrutura contém cloro, mas não contém flúor nem bromo, em ligação covalente
  102. 2933.39.21 PicloramPicloram
  103. 2933.39.22 ChlorpyrifosClorpirifós
  104. 2933.39.23 Clebopride malateMalato ácido de cleboprida (malato de cleboprida)
  105. 2933.39.24 Loperamide hydrochlorideCloridrato de loperamida
  106. 2933.39.25 Clonixin and its lysine saltÁcido 2-(2-metil-3-cloroanilino)nicotínico e seu sal de lisina
  107. 2933.39.29 Other chlorinated pyridines without F or BrOutros
  108. 2933.39.3 Containing alcohol or carboxylic acid functions, or both, but not covalently bonded halogens, in the structure Cuja estrutura contém funções álcool, ácido carboxílico ou ambas, mas não contém halogênios em ligação covalente
  109. 2933.39.31 TerfenadineTerfenadina
  110. 2933.39.32 Biperiden and its saltsBiperideno e seus sais
  111. 2933.39.33 Isonicotinic acidÁcido isonicotínico
  112. 2933.39.34 5-Ethyl-2,3-dicarboxypyridine (5-EPDC)5-Etil-2,3-dicarboxipiridina (5-EPDC)
  113. 2933.39.35 ImazethapyrImazetapir (ácido (RS)-5-etil-2-(4-isopropil-4-metil-5-oxo-2-imidazolin-2-il)nicotínico)
  114. 2933.39.36 Hydroxyalkyl picolinyl ammonium decane dibromideDibrometo de 1-[N,N-dialquila (de até C10) -N-(n-hidroxialquil (de até C10))amônio]-n-[N-(3-dimetilcarbamoxi-alfa-picolinil)-N,N-dialquil (de até C10) amônio]decano (n=1-8)
  115. 2933.39.37 3-Quinuclidinyl benzilateBenzilato de 3-quinuclidinila
  116. 2933.39.39 Other pyridine alcohols and carboxylic acidsOutros
  117. 2933.39.4 Containing ether or ester functions, or both, but not alcohol or carboxylic acid functions or covalently bonded halogens, in the structure Cuja estrutura contém funções éter, éster ou ambas, mas não contém funções álcool ou ácido carboxílico nem halogênios em ligação covalente
  118. 2933.39.41 Cyano/acetoxyalkyl ammonium decane dibromideDibrometo de 1-[N,N-dialquila (de até C10) -N-(n-(ciano, acetoxi)alquil (de até C10))amônio]-n-[N-(3-dimetilcarbamoxi-alfa-picolinil)-N,N-dialquil (de até C10) amônio]decano (n=1-8)
  119. 2933.39.42 Bis(picolylammonium)alkanedione dibromideDibrometo de 1,n-bis[N-(3-dimetilcarbamoxi-alfa-picolil)-N,N-dialquila (de até C10) amônio]-alcano-(2,(n-1)-diona) (n=2-12)
  120. 2933.39.43 NifedipineNifedipina
  121. 2933.39.44 NitrendipineNitrendipina
  122. 2933.39.45 Pyrilamine maleateMaleato de pirilamina
  123. 2933.39.46 OmeprazoleOmeprazol
  124. 2933.39.48 NimodipineNimodipina
  125. 2933.39.49 Other pyridine ethers and estersOutros
  126. 2933.39.8 Other, containing in the structure a pyridine ring (whether or not hydrogenated) N-substituted with alkyl or aryl radicals Outros, cuja estrutura contém um ciclo piridina (hidrogenado ou não) N-substituído com radicais alquila ou arila
  127. 2933.39.81 Benzetimide hydrochlorideCloridrato de benzetimida
  128. 2933.39.82 Mepivacaine hydrochlorideCloridrato de mepivacaína
  129. 2933.39.83 Bupivacaine hydrochlorideCloridrato de bupivacaína
  130. 2933.39.84 Paraquat dichlorideDicloreto de paraquate
  131. 2933.39.89 Other N-alkyl or N-aryl pyridine compoundsOutros
  132. 2933.39.9 Other Outros
  133. 2933.39.91 Phenazopyridine hydrochlorideCloridrato de fenazopiridina
  134. 2933.39.92 IsoniazidIsoniazida
  135. 2933.39.93 3-Cyanopyridine3-Cianopiridina
  136. 2933.39.94 4,4'-Bipyridine4,4'-Bipiridina
  137. 2933.39.99 Other unfused pyridine ring compoundsOutros
  138. 2933.4 Compounds containing in the structure a quinoline or isoquinoline ring-system (whether or not hydrogenated), not further fused: Compostos cuja estrutura contém ciclos quinoleína ou isoquinoleína (hidrogenados ou não) sem outras condensações:
  139. 2933.41 Heterocyclic compounds; containing a quinoline or isoquinoline ring-system (whether or not hydrogenated) in the structure, not further fused, levorphanol (INN) and its saltsLevorfanol (DCI) e seus sais HS code
  140. 2933.41.10 LevorphanolLevorfanol
  141. 2933.41.20 Levorphanol saltsSais
  142. 2933.49 Heterocyclic compounds; containing a quinoline or isoquinoline ring-system (whether or not hydrogenated) in the structure, not further fused, other than levorphanol (INN) and its saltsOutros HS code
  143. 2933.49.1 Derivatives of quinolinecarboxylic acid Derivados do ácido quinolinocarboxílico
  144. 2933.49.11 2,3-Quinolinedicarboxylic acidÁcido 2,3-quinolinodicarboxílico
  145. 2933.49.12 RosoxacinRosoxacina
  146. 2933.49.13 ImazaquinImazaquin
  147. 2933.49.19 Other quinolinecarboxylic acid derivativesOutros
  148. 2933.49.20 OxamniquineOxaminiquina
  149. 2933.49.30 BroxyquinolineBroxiquinolina
  150. 2933.49.40 Esters of levorphanolÉsteres do levorfanol
  151. 2933.49.90 Other quinoline or isoquinoline compoundsOutros
  152. 2933.5 Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure: Compostos cuja estrutura contém um ciclo pirimidina (hidrogenado ou não) ou piperazina:
  153. 2933.52.00 Malonylurea (barbituric acid) and its saltsMalonilureia (ácido barbitúrico) e seus sais
  154. 2933.53 Allobarbital (INN), amobarbital (INN), barbital (INN), butalbital (INN), butobarbital, cyclobarbital (INN), methylphenobarbital (INN), pentobarbital (INN), phenobarbital (INN), secbutabarbital (INN), secobarbital (INN) and vinylbital (INN); salts thereofAlobarbital (DCI), amobarbital (DCI), barbital (DCI), butalbital (DCI), butobarbital, ciclobarbital (DCI), fenobarbital (DCI), metilfenobarbital (DCI), pentobarbital (DCI), secbutabarbital (DCI), secobarbital (DCI) e vinilbital (DCI); sais destes produtos HS code
  155. 2933.53.1 Allobarbital and amobarbital; salts thereof Alobarbital e amobarbital; sais destes produtos
  156. 2933.53.11 Allobarbital and its saltsAlobarbital e seus sais
  157. 2933.53.12 Amobarbital and its saltsAmobarbital e seus sais
  158. 2933.53.2 Barbital, butalbital and butobarbital; salts thereof Barbital, butalbital e butobarbital; sais destes produtos
  159. 2933.53.21 Barbital and its saltsBarbital e seus sais
  160. 2933.53.22 Butalbital and its saltsButalbital e seus sais
  161. 2933.53.23 Butobarbital and its saltsButobarbital e seus sais
  162. 2933.53.30 Cyclobarbital and its saltsCiclobarbital e seus sais
  163. 2933.53.40 Phenobarbital and its saltsFenobarbital e seus sais
  164. 2933.53.50 Methylphenobarbital and its saltsMetilfenobarbital e seus sais
  165. 2933.53.60 Pentobarbital and its saltsPentobarbital e seus sais
  166. 2933.53.7 Secbutabarbital and secobarbital; salts thereof Secbutabarbital e secobarbital; sais destes produtos
  167. 2933.53.71 Secbutabarbital and its saltsSecbutabarbital e seus sais
  168. 2933.53.72 Secobarbital and its saltsSecobarbital e seus sais
  169. 2933.53.80 Vinylbital and its saltsVenilbital e seus sais
  170. 2933.54.00 Other barbituric acid derivatives and saltsOutros derivados de malonilureia (ácido barbitúrico); sais destes produtos
  171. 2933.55 Heterocyclic compounds; containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure; loprazolam (INN), mecloqualone (INN), methaqualone (INN), and zipeprol (INN); salts thereofLoprazolam (DCI), mecloqualona (DCI), metaqualona (DCI) e zipeprol (DCI); sais destes produtos HS code
  172. 2933.55.10 Loprazolam and its saltsLoprazolam e seus sais
  173. 2933.55.20 Mecloqualone and its saltsMecloqualona e seus sais
  174. 2933.55.30 Methaqualone and its saltsMetaqualona e seus sais
  175. 2933.55.40 Zipeprol and its saltsZipeprol e seus sais
  176. 2933.59 Heterocyclic compounds; containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure, (other than malonylurea and its derivatives, loprazolam, mecloqualone, methaqualone, zipeprol, and salts thereof) n.e.c. in 2933.5Outros HS code
  177. 2933.59.1 Containing a piperazine ring in the structure Cuja estrutura contém um ciclo piperazina
  178. 2933.59.11 OxatomideOxatomida
  179. 2933.59.12 PraziquantelPraziquantel
  180. 2933.59.13 Norfloxacin and its nicotinateNorfloxacina e seu nicotinato
  181. 2933.59.14 Flunarizine and its dihydrochlorideFlunarizina e seu dicloridrato
  182. 2933.59.15 Enrofloxacin; piperazine saltsEnrofloxacina; sais de piperazina
  183. 2933.59.16 Buspirone hydrochlorideCloridrato de buspirona
  184. 2933.59.19 Other piperazine ring compoundsOutros
  185. 2933.59.2 Containing a pyrimidine ring (whether or not hydrogenated) and covalently bonded halogens in the structure Cuja estrutura contém um ciclo pirimidina (hidrogenado ou não) e halogênios em ligação covalente
  186. 2933.59.21 BromacilBromacil
  187. 2933.59.22 TerbacilTerbacil
  188. 2933.59.23 FluorouracilFluorouracil
  189. 2933.59.29 Other halogenated pyrimidine compoundsOutros
  190. 2933.59.3 Containing a pyrimidine ring (whether or not hydrogenated) and sulphur, but not covalently bonded halogens, in the structure Cuja estrutura contém um ciclo pirimidina (hidrogenado ou não) e enxofre, mas não contém halogênios em ligação covalente
  191. 2933.59.31 PropylthiouracilPropiltiouracil
  192. 2933.59.32 DiazinonDiazinon
  193. 2933.59.33 PyrazophosPirazofós
  194. 2933.59.34 AzathioprineAzatioprina
  195. 2933.59.35 6-Mercaptopurine6-Mercaptopurina
  196. 2933.59.39 Other halogen-free sulphur-containing pyrimidinesOutros
  197. 2933.59.4 Containing a pyrimidine ring (whether or not hydrogenated) and alcohol or ether functions, or both, but not covalently bonded halogens or sulphur, in the structure Cuja estrutura contém um ciclo pirimidina (hidrogenado ou não) e funções álcool, éter ou ambas, mas não contém halogênios em ligação covalente nem enxofre
  198. 2933.59.41 TrimethoprimTrimetoprima
  199. 2933.59.42 AciclovirAciclovir
  200. 2933.59.43 Dipyridamole tosilatesTosilatos de dipiridamol
  201. 2933.59.44 NicarbazinNicarbazina
  202. 2933.59.45 Menadione dimethylpyrimidinol bisulphiteBissulfito de menadiona dimetilpirimidinol
  203. 2933.59.49 Other pyrimidine alcohols/ethers, no S or halogensOutros
  204. 2933.59.9 Other Outros
  205. 2933.59.91 MinoxidilMinoxidil
  206. 2933.59.92 2-Aminopyrimidine2-Aminopirimidina
  207. 2933.59.99 Other pyrimidine or piperazine ring compoundsOutros
  208. 2933.6 Compounds containing an unfused triazine ring (whether or not hydrogenated) in the structure: Compostos cuja estrutura contém um ciclo triazina (hidrogenado ou não) não condensado:
  209. 2933.61.00 MelamineMelamina
  210. 2933.69 Heterocyclic compounds; containing an unfused triazine ring (whether or not hydrogenated) in the structure, others excluding melamineOutros HS code
  211. 2933.69.1 Containing covalently bonded chlorine in the structure Cuja estrutura contém cloro em ligação covalente
  212. 2933.69.11 Cyanuric chloride (2,4,6-trichlorotriazine)2,4,6-Triclorotriazina (cloreto cianúrico)
  213. 2933.69.12 MercaptodichlorotriazineMercaptodiclorotriazina
  214. 2933.69.13 AtrazineAtrazina
  215. 2933.69.14 SimazineSimazina
  216. 2933.69.15 CyanazineCianazina
  217. 2933.69.16 AnilazineAnilazina
  218. 2933.69.19 Other chlorinated triazine compoundsOutros
  219. 2933.69.2 Containing oxygen functions, but not covalently bonded chlorine, in the structure Cuja estrutura contém funções oxigenadas, mas não contém cloro em ligação covalente
  220. 2933.69.21 N,N,N-TrihydroxyethylhexahydrotriazineN,N,N-Triidroxietilexaidrotriazina
  221. 2933.69.22 HexazinoneHexazinona
  222. 2933.69.23 MetribuzinMetribuzim
  223. 2933.69.29 Other chlorine-free oxygen-function triazinesOutros
  224. 2933.69.9 Other Outros
  225. 2933.69.91 AmetrynAmetrina
  226. 2933.69.92 Methenamine and its saltsMetenamina e seus sais
  227. 2933.69.99 Other unfused triazine ring compoundsOutros
  228. 2933.7 Lactams: Lactamas:
  229. 2933.71.00 6-Hexanelactam (epsilon-caprolactam)6-Hexanolactama (épsilon-caprolactama)
  230. 2933.72 Heterocyclic compounds; lactams; clobazam (INN) and methyprylon (INN)Clobazam (DCI) e metiprilona (DCI) HS code
  231. 2933.72.10 ClobazamClobazam
  232. 2933.72.20 MethyprylonMetiprilona
  233. 2933.79 Heterocyclic compounds; lactams; other than 6-hexanelactam (epsilon caprolactam) and clobazam (INN) and methyprylon (INN)Outras lactamas HS code
  234. 2933.79.10 PiracetamPiracetam
  235. 2933.79.90 Other lactamsOutras
  236. 2933.9 Other: Outros:
  237. 2933.91 Heterocyclic compounds; alprazolam (INN), camazepam (INN), chlordiazepoxide (INN), clonazepam (INN), clorazepate, delorazepam (INN), diazepam (INN), estazolam (INN), ethyl loflazepate (INN), fludiazepam (INN), flunitrazepam (INN), (cont)Alprazolam (DCI), camazepam (DCI), clonazepam (DCI), clorazepato, clordiazepóxido (DCI), delorazepam (DCI), diazepam (DCI), estazolam (DCI), fludiazepam (DCI), flunitrazepam (DCI), flurazepam (DCI), halazepam (DCI), loflazepato de etila (DCI), lorazepam (DCI), lormetazepam (DCI), mazindol (DCI), medazepam (DCI), midazolam (DCI), nimetazepam (DCI), nitrazepam (DCI), nordazepam (DCI), oxazepam (DCI), pinazepam (DCI), pirovalerona (DCI), prazepam (DCI), temazepam (DCI), tetrazepam (DCI) e triazolam (DCI); sais destes produtos HS code
  238. 2933.91.1 Alprazolam, camazepam, clonazepam, clorazepate and chlordiazepoxide; salts thereof Alprazolam, camazepam, clonazepam, clorazepato e clorodiazepóxido; sais destes produtos
  239. 2933.91.11 AlprazolamAlprazolam
  240. 2933.91.12 CamazepamCamazepam
  241. 2933.91.13 ClonazepamClonazepam
  242. 2933.91.14 ClorazepateClorazepato
  243. 2933.91.15 ChlordiazepoxideClordiazepóxido
  244. 2933.91.19 Salts of alprazolam, camazepam, clonazepam etcOutros
  245. 2933.91.2 Delorazepam, diazepam and estazolam; salts thereof Delorazepam, diazepam e estazolam; sais destes produtos
  246. 2933.91.21 DelorazepamDelorazepam
  247. 2933.91.22 DiazepamDiazepam
  248. 2933.91.23 EstazolamEstazolam
  249. 2933.91.29 Salts of delorazepam, diazepam and estazolamOutros
  250. 2933.91.3 Fludiazepam, flunitrazepam, flurazepam and halazepam; salts thereof Fludiazepam, flunitrazepam, flurazepam e halazepam; sais destes produtos
  251. 2933.91.31 FludiazepamFludiazepam
  252. 2933.91.32 FlunitrazepamFlunitrazepam
  253. 2933.91.33 FlurazepamFlurazepam
  254. 2933.91.34 HalazepamHalazepam
  255. 2933.91.39 Salts of fludiazepam, flunitrazepam etcOutros
  256. 2933.91.4 Ethyl loflazepate, lorazepam and lormetazepam; salts thereof Loflazepato de etila, lorazepam e lormetazepam; sais destes produtos
  257. 2933.91.41 Ethyl loflazepateLoflazepato de etila
  258. 2933.91.42 LorazepamLorazepam
  259. 2933.91.43 LormetazepamLormetazepam
  260. 2933.91.49 Ethyl loflazepate, lorazepam, lormetazepam saltsOutros
  261. 2933.91.5 Mazindol, medazepam and midazolam; salts thereof Mazindol, medazepam e midazolam; sais destes produtos
  262. 2933.91.51 MazindolMazindol
  263. 2933.91.52 MedazepamMedazepam
  264. 2933.91.53 Midazolam and its saltsMidazolam e seus sais
  265. 2933.91.59 Salts of mazindol and medazepamOutros
  266. 2933.91.6 Nimetazepam, nitrazepam, nordazepam and oxazepam; salts thereof Nimetazepam, nitrazepam, nordazepam e oxazepam; sais destes produtos
  267. 2933.91.61 NimetazepamNimetazepam
  268. 2933.91.62 NitrazepamNitrazepam
  269. 2933.91.63 NordazepamNordazepam
  270. 2933.91.64 OxazepamOxazepam
  271. 2933.91.69 Nimetazepam/nitrazepam/nordazepam/oxazepam saltsOutros
  272. 2933.91.7 Pinazepam, pyrovalerone and prazepam; salts thereof Pinazepam, pirovalerona e prazepam; sais destes produtos
  273. 2933.91.71 PinazepamPinazepam
  274. 2933.91.72 PyrovaleronePirovalerona
  275. 2933.91.73 PrazepamPrazepam
  276. 2933.91.79 Salts of pinazepam, pyrovalerone and prazepamOutros
  277. 2933.91.8 Temazepam, tetrazepam and triazolam; salts thereof Temazepam, tetrazepam e triazolam; sais destes produtos
  278. 2933.91.81 TemazepamTemazepam
  279. 2933.91.82 TetrazepamTetrazepam
  280. 2933.91.83 TriazolamTriazolam
  281. 2933.91.89 Salts of temazepam, tetrazepam and triazolamOutros
  282. 2933.92.00 Azinphos-methyl (ISO)Azinfós metil (ISO)
  283. 2933.99 Heterocyclic compounds; n.e.c. in headings no. 2933Outros HS code
  284. 2933.99.1 Containing in the structure an unfused pyrazine ring or indole ring-systems (whether or not hydrogenated), not further fused Cuja estrutura contém um ciclo pirazina não condensado ou ciclos indol (hidrogenados ou não) sem outras condensações
  285. 2933.99.11 PyrazinamidePirazinamida
  286. 2933.99.12 Amiloride hydrochlorideCloridrato de amilorida
  287. 2933.99.13 PindololPindolol
  288. 2933.99.19 Other pyrazine or indole ring compoundsOutros
  289. 2933.99.20 Other compounds with a diazepine ringCuja estrutura contém um ciclo diazepina (hidrogenado ou não)
  290. 2933.99.3 Containing an azepine ring (whether or not hydrogenated) in the structure Cuja estrutura contém um ciclo azepina (hidrogenado ou não)
  291. 2933.99.31 Dibenzazepine (iminostilbene)Dibenzoazepina (iminoestilbeno)
  292. 2933.99.32 CarbamazepineCarbamazepina
  293. 2933.99.33 Clomipramine hydrochlorideCloridrato de clomipramina
  294. 2933.99.34 MolinateMolinate (hexaidroazepin-1-carbotioato de S-etila)
  295. 2933.99.35 HexamethyleneimineHexametilenoimina
  296. 2933.99.39 Other azepine ring compoundsOutros
  297. 2933.99.4 Containing a pyrrole ring (whether or not hydrogenated) in the structure Cuja estrutura contém um ciclo pirrol (hidrogenado ou não)
  298. 2933.99.41 Clemastine, its derivatives and their saltsClemastina e seus derivados; sais destes produtos
  299. 2933.99.42 AmisulprideAmisulprida
  300. 2933.99.43 SultoprideSultoprida
  301. 2933.99.44 AlizaprideAlizaprida
  302. 2933.99.45 Buflomedil, its derivatives and their saltsBuflomedil e seus derivados; sais destes produtos
  303. 2933.99.46 Enalapril maleateMaleato de enalapril
  304. 2933.99.47 Ketorolac trometamolKetorolac trometamina
  305. 2933.99.49 Other pyrrole ring compoundsOutros
  306. 2933.99.5 Containing an imidazole ring (whether or not hydrogenated) in the structure Cuja estrutura contém um ciclo imidazol (hidrogenados ou não)
  307. 2933.99.51 BenomylBenomil
  308. 2933.99.52 OxfendazoleOxifendazol
  309. 2933.99.53 Albendazole and its sulphoxideAlbendazol e seu sulfóxido
  310. 2933.99.54 MebendazoleMebendazol
  311. 2933.99.55 FlubendazoleFlubendazol
  312. 2933.99.56 FenbendazoleFembendazol
  313. 2933.99.59 Other fused imidazole ring compoundsOutros
  314. 2933.99.6 Containing an unfused triazole ring (whether or not hydrogenated) in the structure Cuja estrutura contém um ciclo triazol (hidrogenado ou não), não condensado
  315. 2933.99.61 TriadimenolTriadimenol
  316. 2933.99.62 TriadimefonTriadimefon
  317. 2933.99.63 TriazophosTriazofós (fosforotioato de O,O-dietila O-(1-fenil-1H-1,2,4-triazol-3-ila))
  318. 2933.99.69 Other unfused triazole ring compoundsOutros
  319. 2933.99.9 Other Outros
  320. 2933.99.91 Azinphos-ethylAzinfós etílico
  321. 2933.99.92 Nalidixic acidÁcido nalidíxico
  322. 2933.99.93 ClofazimineClofazimina
  323. 2933.99.95 Amezinium metilsulfateMetilssulfato de amezínio
  324. 2933.99.96 Maleic hydrazide and its saltsHidrazida maleica e seus sais
  325. 2933.99.99 Other nitrogen-only heterocyclic compoundsOutros

Source: Siscomex Classif NCM table, updated Oct 2026 (Resolução Gecex nº 926/2026). The Portuguese text is the official one; the English is our translation.