Brazil NCM · 8-digit code

NCM 2918.91.00 – 2,4,5-T (ISO), its salts and esters

NCM 2918.91.00 (also written 29189100) is Brazil's code for 2,4,5-T (ISO), its salts and esters. Its first 6 digits are HS code 2918.91.

Official description of NCM 2918.91.00

PortuguêsOfficial
2,4,5-T (ISO) (ácido 2,4,5-triclorofenoxiacético), seus sais e seus ésteres
EnglishUnofficial translation

Acids; carboxylic acids, with additional oxygen function (not alcohol, phenol, aldehyde or ketone) and their anhydrides, halides, peroxides and peroxyacids; 2,4,5-T (ISO) (2,4,5-trichlorophenoxyacetic acid), its salts and esters

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

How to read NCM 2918.91.00

29Chapter 18Heading 91Subheading

HS code 2918.91
Same in every country

0Item 0Subitem

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. The last two digits are 00 because Brazil does not split this HS code further. 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. Group 2918.9 Other: Outros:
  4. Subheading 2918.91 Acids; carboxylic acids, with additional oxygen function (not alcohol, phenol, aldehyde or ketone) and their anhydrides, halides, peroxides and peroxyacids; 2,4,5-T (ISO) (2,4,5-trichlorophenoxyacetic acid), its salts and esters
  5. Subitem 2918.91.00 Acids; carboxylic acids, with additional oxygen function (not alcohol, phenol, aldehyde or ketone) and their anhydrides, halides, peroxides and peroxyacids; 2,4,5-T (ISO) (2,4,5-trichlorophenoxyacetic acid), its salts and esters 2,4,5-T (ISO) (ácido 2,4,5-triclorofenoxiacético), seus sais e seus ésteres

Questions about NCM 2918.91.00

What is NCM 2918.91.00?

NCM 2918.91.00 (29189100) is the Brazilian (Mercosur) code for 2,4,5-T (ISO), its salts and esters. Its official Portuguese description is “2,4,5-T (ISO) (ácido 2,4,5-triclorofenoxiacético), seus sais e seus ésteres”.

What is the HS code for NCM 2918.91.00?

HS 2918.91 (Acids; carboxylic acids, with additional oxygen function (not alcohol, phenol, aldehyde or ketone) and their anhydrides, halides, peroxides and peroxyacids; 2,4,5-T (ISO) (2,4,5-trichlorophenoxyacetic acid), its salts and esters). 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 2918.91.00?

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.