Brazil NCM · 8-digit subitem

NCM 2922.39.21 – Ketamine hydrochloride

NCM 2922.39.21 (also written 29223921) is Brazil's code for ketamine hydrochloride. Its first 6 digits are HS code 2922.39.

Official description of NCM 2922.39.21

PortuguêsOfficial
Cloridrato
EnglishUnofficial translation

Hydrochloride

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

How to read NCM 2922.39.21

29Chapter 22Heading 39Subheading

HS code 2922.39
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 29.22 Oxygen-function amino-compounds Compostos aminados de funções oxigenadas.
  3. Group 2922.3 Amino-aldehydes, amino-ketones and amino-quinones, other than those containing more than one kind of oxygen function; salts thereof: Aminoaldeídos, aminocetonas e aminoquinonas, exceto de funções oxigenadas diferentes; sais destes produtos:
  4. Subheading 2922.39 Amino-aldehydes, amino-ketones and amino-quinones; other than those containing more than one kind of oxygen function; salts thereof, excluding amfepramone (INN), methadone (INN), and normethadone (INN) and salts thereof Outros
  5. Item 2922.39.2 Ketamine and its salts Ketamina e seus sais
  6. Subitem 2922.39.21 Hydrochloride Cloridrato

Other NCM codes under HS 2922.39

2922.39.10 Aminoanthraquinones and their saltsAminoantraquinonas e seus sais 2922.39.29 Ketamine and salts other than hydrochlorideOutros 2922.39.90 Other amino-aldehydes, -ketones, -quinones; saltsOutros

Questions about NCM 2922.39.21

What is NCM 2922.39.21?

NCM 2922.39.21 (29223921) is the Brazilian (Mercosur) code for ketamine hydrochloride. Its official Portuguese description is “Cloridrato”.

What is the HS code for NCM 2922.39.21?

HS 2922.39 (Amino-aldehydes, amino-ketones and amino-quinones; other than those containing more than one kind of oxygen function; salts thereof, excluding amfepramone (INN), methadone (INN), and normethadone (INN) and salts thereof). 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 2922.39.21?

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.