Brazil NCM · 8-digit subitem

NCM 2933.21.21 – Phenytoin and its sodium salt

NCM 2933.21.21 (also written 29332121) is Brazil's code for phenytoin and its sodium salt. Its first 6 digits are HS code 2933.21.

Official description of NCM 2933.21.21

PortuguêsOfficial
Fenitoína e seu sal sódico
EnglishUnofficial translation

Phenytoin and its sodium salt

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

How to read NCM 2933.21.21

29Chapter 33Heading 21Subheading

HS code 2933.21
Same in every country

2Item 1Subitem

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 2933.2 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:
  4. Subheading 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 derivatives Hidantoína e seus derivados
  5. Item 2933.21.2 Phenytoin and its salts Fenitoína e seus sais
  6. Subitem 2933.21.21 Phenytoin and its sodium salt Fenitoína e seu sal sódico

Other NCM codes under HS 2933.21

2933.21.10 IprodioneIprodiona 2933.21.29 Other phenytoin saltsOutros 2933.21.90 Other hydantoin and its derivativesOutros

Questions about NCM 2933.21.21

What is NCM 2933.21.21?

NCM 2933.21.21 (29332121) is the Brazilian (Mercosur) code for phenytoin and its sodium salt. Its official Portuguese description is “Fenitoína e seu sal sódico”.

What is the HS code for NCM 2933.21.21?

HS 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 derivatives). 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 2933.21.21?

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.