Brazil NCM · 8-digit code

NCM 2931.48.00 – Dimethyl tetraoxadiphosphaspiroundecane dioxide

NCM 2931.48.00 (also written 29314800) is Brazil's code for dimethyl tetraoxadiphosphaspiroundecane dioxide. Its first 6 digits are HS code 2931.48.

Official description of NCM 2931.48.00

PortuguêsOfficial
3,9-Dióxido de 3,9-dimetil-2,4,8,10-tetraoxa-3,9-difosfaspiro[5.5]undecano
EnglishUnofficial translation

Non-halogenated organo-phosphorous derivatives; 3,9-dimethyl-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5] undecane 3,9-dioxide

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

How to read NCM 2931.48.00

29Chapter 31Heading 48Subheading

HS code 2931.48
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 29.31 Other organo-inorganic compounds Outros compostos organo-inorgânicos.
  3. Group 2931.4 Non-halogenated organo-phosphorous derivatives: Derivados organofosforados não halogenados:
  4. Subheading 2931.48 Non-halogenated organo-phosphorous derivatives; 3,9-dimethyl-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5] undecane 3,9-dioxide
  5. Subitem 2931.48.00 Non-halogenated organo-phosphorous derivatives; 3,9-dimethyl-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5] undecane 3,9-dioxide 3,9-Dióxido de 3,9-dimetil-2,4,8,10-tetraoxa-3,9-difosfaspiro[5.5]undecano

Questions about NCM 2931.48.00

What is NCM 2931.48.00?

NCM 2931.48.00 (29314800) is the Brazilian (Mercosur) code for dimethyl tetraoxadiphosphaspiroundecane dioxide. Its official Portuguese description is “3,9-Dióxido de 3,9-dimetil-2,4,8,10-tetraoxa-3,9-difosfaspiro[5.5]undecano”.

What is the HS code for NCM 2931.48.00?

HS 2931.48 (Non-halogenated organo-phosphorous derivatives; 3,9-dimethyl-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5] undecane 3,9-dioxide). 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 2931.48.00?

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.