Brazil NCM · 8-digit subitem

NCM 2931.49.31 – Butyl methylphosphinate

NCM 2931.49.31 (also written 29314931) is Brazil's code for butyl methylphosphinate. Its first 6 digits are HS code 2931.49.

Official description of NCM 2931.49.31

PortuguêsOfficial
Metilfosfinato de butila
EnglishUnofficial translation

Butyl methylphosphinate

Nomenclatura Comum do Mercosul (Siscomex). Updated Oct 2026 · In force since Apr 2024 (Res Gecex 547/2023).

How to read NCM 2931.49.31

29Chapter 31Heading 49Subheading

HS code 2931.49
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 29.31 Other organo-inorganic compounds Outros compostos organo-inorgânicos.
  3. Group 2931.4 Non-halogenated organo-phosphorous derivatives: Derivados organofosforados não halogenados:
  4. Subheading 2931.49 Non-halogenated organo-phosphorous derivatives; other non-halogenated organo-phosphorous derivatives, n.e.c. in item no. 2931.4 Outros
  5. Item 2931.49.3 Other compounds containing a phosphorus atom bonded to an alkyl group (C1 to C3) but no further carbon atoms Outros compostos que contenham um átomo de fósforo ligado a um grupo alquila (de C1 a C3) mas sem outros átomos de carbono
  6. Subitem 2931.49.31 Butyl methylphosphinate Metilfosfinato de butila

Other NCM codes under HS 2931.49

2931.49.11 PMIDA; aminotrimethylenephosphonic acidÁcido fosfonometiliminodiacético; ácido aminotrimetilenofosfônico 2931.49.12 4,4'-Bis(dimethoxyphosphinylmethyl)diphenylDifenilfosfonato(4,4'-bis((dimetoxifosfinil)metil)difenila) 2931.49.13 Disodium etidronateEtidronato dissódico 2931.49.14 Glyphosate and its monoisopropylamine saltGlifosato e seu sal de monoisopropilamina 2931.49.15 Glufosinate-ammoniumGlufosinato de amônio 2931.49.16 Bis(2-ethylhexyl) hydrogen phosphonateHidrogenofosfonato de bis(2-etilexilo) 2931.49.20 O-Dialkyl(C1-C3)aminoethyl alkylphosphonitesHidrogênio alquil(de C1 a C3)fosfonitos de [O-2-(dialquil(de C1 a C3)amino)etila], seus ésteres de O-alquila (de até C10, incluindo os cicloalquila); sais alquilados ou protonados destes produtos 2931.49.32 Bis(1-methylpentyl) methylphosphonateMetilfosfonato de bis(1-metilpentila) 2931.49.39 Non-halogenated P-(C1-C3)alkyl, no other P-C bondOutros 2931.49.40 O-Alkyl N,N-dialkyl(C1-C3)phosphoramidocyanidatesN,N-Dialquil(de C1 a C3)fosforoamidocianidatos de O-alquila (de até C10, incluindo os cicloalquila) 2931.49.90 Other non-halogenated organophosphorus derivativesOutros

Questions about NCM 2931.49.31

What is NCM 2931.49.31?

NCM 2931.49.31 (29314931) is the Brazilian (Mercosur) code for butyl methylphosphinate. Its official Portuguese description is “Metilfosfinato de butila”.

What is the HS code for NCM 2931.49.31?

HS 2931.49 (Non-halogenated organo-phosphorous derivatives; other non-halogenated organo-phosphorous derivatives, n.e.c. in item no. 2931.4). 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 2931.49.31?

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.