Brazil NCM · 8-digit subitem

NCM 3402.90.23 – Perfluoroalkyl ammonium sulphonates and acrylamide

NCM 3402.90.23 (also written 34029023) is Brazil's code for perfluoroalkyl ammonium sulphonates and acrylamide. Its first 6 digits are HS code 3402.90.

Official description of NCM 3402.90.23

PortuguêsOfficial
Soluções ou emulsões hidroalcoólicas de sulfonatos de perfluoralquiltrimetilamônio e de perfluoralquilacrilamida
EnglishUnofficial translation

Hydroalcoholic solutions or emulsions of perfluoroalkyltrimethylammonium sulphonates and of perfluoroalkylacrylamide

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

How to read NCM 3402.90.23

34Chapter 02Heading 90Subheading

HS code 3402.90
Same in every country

2Item 3Subitem

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 34 Soap, organic surface-active agents; washing, lubricating, polishing or scouring preparations; artificial or prepared waxes, candles and similar articles, modelling pastes, dental waxes and dental preparations with a basis of plaster Sabões, agentes orgânicos de superfície, preparações para lavagem, preparações lubrificantes, ceras artificiais, ceras preparadas, produtos de conservação e limpeza, velas e artigos semelhantes, massas ou pastas para modelar, "ceras para odontologia" e composições para odontologia à base de gesso.
  2. Heading 34.02 Organic surface-active agents (not soap); surface-active, washing (including auxiliary washing) and cleaning preparations, containing soap or not, excluding those of heading no. 3401 Agentes orgânicos de superfície (exceto sabões); preparações tensoativas, preparações para lavagem (incluindo as preparações auxiliares para lavagem) e preparações para limpeza, mesmo que contenham sabão, exceto as da posição 34.01.
  3. Subheading 3402.90 Washing and cleaning preparations; surface-active, whether or not containing soap (excluding those of heading no. 3401), including auxiliary washing preparations, not for retail sale Outras
  4. Item 3402.90.2 Solutions or emulsions of surface-active products of subheadings 3402.31 to 3402.49, and other surface-active preparations as such Soluções ou emulsões de produtos tensoativos das subposições 3402.31 a 3402.49, e outras preparações tensoativas propriamente ditas
  5. Subitem 3402.90.23 Hydroalcoholic solutions or emulsions of perfluoroalkyltrimethylammonium sulphonates and of perfluoroalkylacrylamide Soluções ou emulsões hidroalcoólicas de sulfonatos de perfluoralquiltrimetilamônio e de perfluoralquilacrilamida

Other NCM codes under HS 3402.90

3402.90.11 Non-ionic-only surface-active agent mixturesQue contenham exclusivamente produtos não iônicos 3402.90.19 Other surface-active agent mixturesOutras 3402.90.21 Perfluoroalkyl acetoxypropyl betaine mixturesSoluções ou emulsões hidroalcoólicas de (1-perfluoralquil-2-acetoxi)propil-betaína 3402.90.22 Sodium nonanoyloxybenzenesulphonate preparationsÀ base de nonanoiloxibenzenossulfonato de sódio 3402.90.29 Other surface-active solutions and preparationsOutras 3402.90.31 Ethoxylated nonylphenol detergentsÀ base de nonilfenol etoxilado 3402.90.39 Other detergents, not for retail saleOutras 3402.90.90 Other cleaning preparations, not for retailOutras

Questions about NCM 3402.90.23

What is NCM 3402.90.23?

NCM 3402.90.23 (34029023) is the Brazilian (Mercosur) code for perfluoroalkyl ammonium sulphonates and acrylamide. Its official Portuguese description is “Soluções ou emulsões hidroalcoólicas de sulfonatos de perfluoralquiltrimetilamônio e de perfluoralquilacrilamida”.

What is the HS code for NCM 3402.90.23?

HS 3402.90 (Washing and cleaning preparations; surface-active, whether or not containing soap (excluding those of heading no. 3401), including auxiliary washing preparations, not for retail sale). 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 3402.90.23?

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.