Brazil NCM · 8-digit subitem

NCM 2918.30.31 – Dehydrocholic acid

NCM 2918.30.31 (also written 29183031) is Brazil's code for dehydrocholic acid. Its first 6 digits are HS code 2918.30.

Official description of NCM 2918.30.31

PortuguêsOfficial
Ácido deidrocólico
EnglishUnofficial translation

Dehydrocholic acid

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

How to read NCM 2918.30.31

29Chapter 18Heading 30Subheading

HS code 2918.30
Same in every country

3Item 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 29.18 Acids; carboxylic acid with additional oxygen function and their anhydrides, halides, peroxides, peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives Ácidos carboxílicos que contenham funções oxigenadas suplementares e seus anidridos, halogenetos, peróxidos e peroxiácidos; seus derivados halogenados, sulfonados, nitrados ou nitrosados.
  3. Subheading 2918.30 Acids; carboxylic acids, (with aldehyde or ketone function but without other oxygen function), their anhydrides, halides, peroxides, peroxyacids and their derivatives Ácidos carboxílicos de função aldeído ou cetona, mas sem outra função oxigenada, seus anidridos, halogenetos, peróxidos, peroxiácidos e seus derivados
  4. Item 2918.30.3 Dehydrocholic acid and its salts Ácido deidrocólico e seus sais
  5. Subitem 2918.30.31 Dehydrocholic acid Ácido deidrocólico

Other NCM codes under HS 2918.30

2918.30.10 KetoprofenCetoprofeno 2918.30.20 Methyl butyrylacetateButirilacetato de metila 2918.30.32 Sodium dehydrocholateDeidrocolato de sódio 2918.30.33 Magnesium dehydrocholateDeidrocolato de magnésio 2918.30.39 Other salts of dehydrocholic acidOutros 2918.30.40 2-Nitromethylbenzylidene acetylacetateAcetilacetato de 2-nitrometilbenzilideno 2918.30.90 Other aldehyde/ketone-function carboxylic acidsOutros

Questions about NCM 2918.30.31

What is NCM 2918.30.31?

NCM 2918.30.31 (29183031) is the Brazilian (Mercosur) code for dehydrocholic acid. Its official Portuguese description is “Ácido deidrocólico”.

What is the HS code for NCM 2918.30.31?

HS 2918.30 (Acids; carboxylic acids, (with aldehyde or ketone function but without other oxygen function), their anhydrides, halides, peroxides, peroxyacids and their 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 2918.30.31?

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.