Brazil NCM · 8-digit subitem

NCM 2933.39.94 – 4,4'-Bipyridine

NCM 2933.39.94 (also written 29333994) is Brazil's code for 4,4'-Bipyridine. Its first 6 digits are HS code 2933.39.

Official description of NCM 2933.39.94

PortuguêsOfficial
4,4'-Bipiridina
EnglishUnofficial translation

4,4'-Bipyridine

Nomenclatura Comum do Mercosul (Siscomex). Updated Oct 2026 · In force since Apr 2022 (Res Gecex 272/2021).

How to read NCM 2933.39.94

29Chapter 33Heading 39Subheading

HS code 2933.39
Same in every country

9Item 4Subitem

Added by Mercosur
Brazil, Argentina, Paraguay, Uruguay

The first 6 digits are the international HS code, so their meaning is the same in every country; Brazil publishes the text in Portuguese. Digits 7 and 8 are Brazil's own split of that HS code. The full 8-digit code is used on import declarations (DUIMP), invoices (NF-e) and tax filings.

Full classification path

  1. Chapter 29 Organic chemicals Produtos químicos orgânicos.
  2. Heading 29.33 Heterocyclic compounds with nitrogen hetero-atom(s) only Compostos heterocíclicos exclusivamente de heteroátomo(s) de nitrogênio (azoto).
  3. Group 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:
  4. Subheading 2933.39 Heterocyclic compounds; containing an unfused pyridine ring (whether or not hydrogenated) in the structure, n.e.c. in 2933.3 Outros
  5. Item 2933.39.9 Other Outros
  6. Subitem 2933.39.94 4,4'-Bipyridine 4,4'-Bipiridina

Other NCM codes under HS 2933.39

2933.39.12 DroperidolDroperidol 2933.39.13 Niflumic acidÁcido niflúmico 2933.39.14 HaloxyfopHaloxifop (ácido (RS)-2-(4-(3-cloro-5-trifluorometil-2-piridiloxi)fenoxi)propiônico) 2933.39.15 HaloperidolHaloperidol 2933.39.19 Other fluorinated/brominated pyridine compoundsOutros 2933.39.21 PicloramPicloram 2933.39.22 ChlorpyrifosClorpirifós 2933.39.23 Clebopride malateMalato ácido de cleboprida (malato de cleboprida) 2933.39.24 Loperamide hydrochlorideCloridrato de loperamida 2933.39.25 Clonixin and its lysine saltÁcido 2-(2-metil-3-cloroanilino)nicotínico e seu sal de lisina 2933.39.29 Other chlorinated pyridines without F or BrOutros 2933.39.31 TerfenadineTerfenadina 2933.39.32 Biperiden and its saltsBiperideno e seus sais 2933.39.33 Isonicotinic acidÁcido isonicotínico 2933.39.34 5-Ethyl-2,3-dicarboxypyridine (5-EPDC)5-Etil-2,3-dicarboxipiridina (5-EPDC) 2933.39.35 ImazethapyrImazetapir (ácido (RS)-5-etil-2-(4-isopropil-4-metil-5-oxo-2-imidazolin-2-il)nicotínico) 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) 2933.39.37 3-Quinuclidinyl benzilateBenzilato de 3-quinuclidinila 2933.39.39 Other pyridine alcohols and carboxylic acidsOutros 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) 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) 2933.39.43 NifedipineNifedipina 2933.39.44 NitrendipineNitrendipina 2933.39.45 Pyrilamine maleateMaleato de pirilamina 2933.39.46 OmeprazoleOmeprazol 2933.39.48 NimodipineNimodipina 2933.39.49 Other pyridine ethers and estersOutros 2933.39.81 Benzetimide hydrochlorideCloridrato de benzetimida 2933.39.82 Mepivacaine hydrochlorideCloridrato de mepivacaína 2933.39.83 Bupivacaine hydrochlorideCloridrato de bupivacaína 2933.39.84 Paraquat dichlorideDicloreto de paraquate 2933.39.89 Other N-alkyl or N-aryl pyridine compoundsOutros 2933.39.91 Phenazopyridine hydrochlorideCloridrato de fenazopiridina 2933.39.92 IsoniazidIsoniazida 2933.39.93 3-Cyanopyridine3-Cianopiridina 2933.39.99 Other unfused pyridine ring compoundsOutros

Questions about NCM 2933.39.94

What is NCM 2933.39.94?

NCM 2933.39.94 (29333994) is the Brazilian (Mercosur) code for 4,4'-Bipyridine. Its official Portuguese description is “4,4'-Bipiridina”.

What is the HS code for NCM 2933.39.94?

HS 2933.39 (Heterocyclic compounds; containing an unfused pyridine ring (whether or not hydrogenated) in the structure, n.e.c. in 2933.3). The first 6 digits of an NCM code are its international HS code; the last 2 digits are Brazil's own split.

Is an NCM code the same as an HS code?

The first 6 digits are the same in every country. NCM adds an item digit (7th) and a subitem digit (8th). A code ending in 00 means Brazil does not split that HS code further.

Which countries use NCM 2933.39.94?

All Mercosur members use the same NCM codes: Argentina, Brazil, Paraguay and Uruguay.

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.