Brazil NCM · 4-digit heading
NCM 29.23 – Quaternary ammonium compounds; phosphoaminolipids
About NCM heading 29.23
Quaternary ammonium salts and hydroxides; lecithins and other phosphoaminolipids, whether or not chemically defined
Heading 29.23 of Brazil's NCM has 11 eight-digit codes. Official Portuguese description: Sais e hidróxidos de amônio quaternários; lecitinas e outros fosfoaminolipídios, de constituição química definida ou não.
The first four digits, 2923, identify this heading within chapter 29. Its six-digit subheadings follow the international HS system; the final two digits distinguish Mercosur's NCM classifications. Select a code below to read its English translation, official Portuguese text and full classification path.
For product coverage and classification context, read the HS heading 29.23 guide.
NCM codes in heading 29.23 11
- 2923.10.00 Choline and its saltsColina e seus sais
- 2923.20.00 Lecithins and other phosphoaminolipidsLecitinas e outros fosfoaminolipídios
- 2923.30.00 Tetraethylammonium perfluorooctane sulphonatePerfluoroctanossulfonato de tetraetilamônio
- 2923.40.00 Didecyldimethylammonium perfluorooctane sulphonatePerfluoroctanossulfonato de didecildimetilamônio
- 2923.90 Quaternary ammonium salts and hydroxides; whether or not chemically defined n.e.c. in heading no. 2923Outros HS code
- 2923.90.10 Betaine and its saltsBetaína e seus sais
- 2923.90.20 Choline derivativesDerivados da colina
- 2923.90.30 3-Chloro-2-hydroxypropyltrimethylammonium chlorideCloreto de 3-cloro-2-hidroxipropiltrimetilamônio
- 2923.90.40 C6-C22 alkyltrimethylammonium halidesHalogenetos de alquil-trimetilamônio, com grupo alquila de C6 a C22
- 2923.90.50 C6-C22 dialkyldimethyl- or benzalkonium halidesHalogenetos de dialquil-dimetilamônio ou de alquil-benzil-dimetilamônio, com grupo alquila de C6 a C22
- 2923.90.60 C6-C22 pentamethylalkylpropylenediammonium halidesHalogenetos de pentametil-alquil-propilenodiamônio, com grupo alquila de C6 a C22
- 2923.90.90 Other quaternary ammonium salts and hydroxidesOutros
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.