Brazil NCM · 8-digit subitem

NCM 2933.59.34 – Azathioprine

NCM 2933.59.34 (also written 29335934) is Brazil's code for azathioprine. Its first 6 digits are HS code 2933.59.

Official description of NCM 2933.59.34

PortuguêsOfficial
Azatioprina
EnglishUnofficial translation

Azathioprine

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

How to read NCM 2933.59.34

29Chapter 33Heading 59Subheading

HS code 2933.59
Same in every country

3Item 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 2933.5 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:
  4. Subheading 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 2933.5 Outros
  5. Item 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
  6. Subitem 2933.59.34 Azathioprine Azatioprina

Other NCM codes under HS 2933.59

2933.59.11 OxatomideOxatomida 2933.59.12 PraziquantelPraziquantel 2933.59.13 Norfloxacin and its nicotinateNorfloxacina e seu nicotinato 2933.59.14 Flunarizine and its dihydrochlorideFlunarizina e seu dicloridrato 2933.59.15 Enrofloxacin; piperazine saltsEnrofloxacina; sais de piperazina 2933.59.16 Buspirone hydrochlorideCloridrato de buspirona 2933.59.19 Other piperazine ring compoundsOutros 2933.59.21 BromacilBromacil 2933.59.22 TerbacilTerbacil 2933.59.23 FluorouracilFluorouracil 2933.59.29 Other halogenated pyrimidine compoundsOutros 2933.59.31 PropylthiouracilPropiltiouracil 2933.59.32 DiazinonDiazinon 2933.59.33 PyrazophosPirazofós 2933.59.35 6-Mercaptopurine6-Mercaptopurina 2933.59.39 Other halogen-free sulphur-containing pyrimidinesOutros 2933.59.41 TrimethoprimTrimetoprima 2933.59.42 AciclovirAciclovir 2933.59.43 Dipyridamole tosilatesTosilatos de dipiridamol 2933.59.44 NicarbazinNicarbazina 2933.59.45 Menadione dimethylpyrimidinol bisulphiteBissulfito de menadiona dimetilpirimidinol 2933.59.49 Other pyrimidine alcohols/ethers, no S or halogensOutros 2933.59.91 MinoxidilMinoxidil 2933.59.92 2-Aminopyrimidine2-Aminopirimidina 2933.59.99 Other pyrimidine or piperazine ring compoundsOutros

Questions about NCM 2933.59.34

What is NCM 2933.59.34?

NCM 2933.59.34 (29335934) is the Brazilian (Mercosur) code for azathioprine. Its official Portuguese description is “Azatioprina”.

What is the HS code for NCM 2933.59.34?

HS 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 2933.5). 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 2933.59.34?

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.