Brazil NCM · 8-digit subitem

NCM 2933.99.99 – Other nitrogen-only heterocyclic compounds

NCM 2933.99.99 (also written 29339999) is Brazil's code for other nitrogen-only heterocyclic compounds. Its first 6 digits are HS code 2933.99.

Official description of NCM 2933.99.99

PortuguêsOfficial
Outros
EnglishUnofficial translation

Other

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

How to read NCM 2933.99.99

29Chapter 33Heading 99Subheading

HS code 2933.99
Same in every country

9Item 9Subitem

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 2933.9 Other: Outros:
  4. Subheading 2933.99 Heterocyclic compounds; n.e.c. in headings no. 2933 Outros
  5. Item 2933.99.9 Other Outros
  6. Subitem 2933.99.99 Other Outros

Other NCM codes under HS 2933.99

2933.99.11 PyrazinamidePirazinamida 2933.99.12 Amiloride hydrochlorideCloridrato de amilorida 2933.99.13 PindololPindolol 2933.99.19 Other pyrazine or indole ring compoundsOutros 2933.99.20 Other compounds with a diazepine ringCuja estrutura contém um ciclo diazepina (hidrogenado ou não) 2933.99.31 Dibenzazepine (iminostilbene)Dibenzoazepina (iminoestilbeno) 2933.99.32 CarbamazepineCarbamazepina 2933.99.33 Clomipramine hydrochlorideCloridrato de clomipramina 2933.99.34 MolinateMolinate (hexaidroazepin-1-carbotioato de S-etila) 2933.99.35 HexamethyleneimineHexametilenoimina 2933.99.39 Other azepine ring compoundsOutros 2933.99.41 Clemastine, its derivatives and their saltsClemastina e seus derivados; sais destes produtos 2933.99.42 AmisulprideAmisulprida 2933.99.43 SultoprideSultoprida 2933.99.44 AlizaprideAlizaprida 2933.99.45 Buflomedil, its derivatives and their saltsBuflomedil e seus derivados; sais destes produtos 2933.99.46 Enalapril maleateMaleato de enalapril 2933.99.47 Ketorolac trometamolKetorolac trometamina 2933.99.49 Other pyrrole ring compoundsOutros 2933.99.51 BenomylBenomil 2933.99.52 OxfendazoleOxifendazol 2933.99.53 Albendazole and its sulphoxideAlbendazol e seu sulfóxido 2933.99.54 MebendazoleMebendazol 2933.99.55 FlubendazoleFlubendazol 2933.99.56 FenbendazoleFembendazol 2933.99.59 Other fused imidazole ring compoundsOutros 2933.99.61 TriadimenolTriadimenol 2933.99.62 TriadimefonTriadimefon 2933.99.63 TriazophosTriazofós (fosforotioato de O,O-dietila O-(1-fenil-1H-1,2,4-triazol-3-ila)) 2933.99.69 Other unfused triazole ring compoundsOutros 2933.99.91 Azinphos-ethylAzinfós etílico 2933.99.92 Nalidixic acidÁcido nalidíxico 2933.99.93 ClofazimineClofazimina 2933.99.95 Amezinium metilsulfateMetilssulfato de amezínio 2933.99.96 Maleic hydrazide and its saltsHidrazida maleica e seus sais

Questions about NCM 2933.99.99

What is NCM 2933.99.99?

NCM 2933.99.99 (29339999) is the Brazilian (Mercosur) code for other nitrogen-only heterocyclic compounds. Its official Portuguese description is “Outros”.

What is the HS code for NCM 2933.99.99?

HS 2933.99 (Heterocyclic compounds; n.e.c. in headings no. 2933). 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 2933.99.99?

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.