Brazil NCM · 8-digit subitem

NCM 3812.39.11 – N-substituted p-phenylenediamines for rubber

NCM 3812.39.11 (also written 38123911) is Brazil's code for n-substituted p-phenylenediamines for rubber. Its first 6 digits are HS code 3812.39.

Official description of NCM 3812.39.11

PortuguêsOfficial
Que contenham derivados N-substituídos de p-fenilenodiamina
EnglishUnofficial translation

Containing N-substituted derivatives of p-phenylenediamine

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

How to read NCM 3812.39.11

38Chapter 12Heading 39Subheading

HS code 3812.39
Same in every country

1Item 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 38 Chemical products n.e.c. Produtos diversos das indústrias químicas.
  2. Heading 38.12 Prepared rubber accelerators; compound plasticisers for rubber or plastics, n.e.c. or included; anti-oxidising preparations and other compound stabilisers for rubber or plastics Preparações denominadas "aceleradores de vulcanização"; plastificantes compostos para borracha ou plástico, não especificados nem compreendidos noutras posições; preparações antioxidantes e outros estabilizadores compostos, para borracha ou plástico.
  3. Group 3812.3 Anti-oxidising preparations and other compound stabilisers for rubber or plastics: Preparações antioxidantes e outros estabilizadores compostos, para borracha ou plástico:
  4. Subheading 3812.39 Anti-oxidising preparations and other compound stabilisers; for rubber or plastics, other than mixtures of oligomers of 2,2,4-trimethyl-1,2-dihydroquinoline (TMQ) Outros
  5. Item 3812.39.1 For rubber Para borracha
  6. Subitem 3812.39.11 Containing N-substituted derivatives of p-phenylenediamine Que contenham derivados N-substituídos de p-fenilenodiamina

Other NCM codes under HS 3812.39

3812.39.12 Phosphite antioxidants for rubberQue contenham fosfitos de alquila, de arila ou de alquil-arila 3812.39.19 Other rubber antioxidants and stabilisersOutros 3812.39.21 N-substituted p-phenylenediamines for plasticsQue contenham derivados N-substituídos de p-fenilenodiamina 3812.39.29 Other plastics antioxidants and stabilisersOutros

Questions about NCM 3812.39.11

What is NCM 3812.39.11?

NCM 3812.39.11 (38123911) is the Brazilian (Mercosur) code for n-substituted p-phenylenediamines for rubber. Its official Portuguese description is “Que contenham derivados N-substituídos de p-fenilenodiamina”.

What is the HS code for NCM 3812.39.11?

HS 3812.39 (Anti-oxidising preparations and other compound stabilisers; for rubber or plastics, other than mixtures of oligomers of 2,2,4-trimethyl-1,2-dihydroquinoline (TMQ)). 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 3812.39.11?

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.