Brazil NCM · 8-digit code

NCM 2811.12.00 – Hydrogen cyanide (hydrocyanic acid)

NCM 2811.12.00 (also written 28111200) is Brazil's code for hydrogen cyanide (hydrocyanic acid). Its first 6 digits are HS code 2811.12.

Official description of NCM 2811.12.00

PortuguêsOfficial
Cianeto de hidrogênio (ácido cianídrico ou ácido hidrociânico)
EnglishUnofficial translation

Hydrogen cyanide (hydrocyanic acid)

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

How to read NCM 2811.12.00

28Chapter 11Heading 12Subheading

HS code 2811.12
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 28 Inorganic chemicals; organic and inorganic compounds of precious metals; of rare earth metals, of radio-active elements and of isotopes Produtos químicos inorgânicos; compostos inorgânicos ou orgânicos de metais preciosos, de elementos radioativos, de metais das terras raras ou de isótopos.
  2. Heading 28.11 Inorganic acids and other inorganic oxygen compounds of non-metals; n.e.c. in heading no. 2806 to 2810 Outros ácidos inorgânicos e outros compostos oxigenados inorgânicos dos elementos não metálicos.
  3. Group 2811.1 Other inorganic acids: Outros ácidos inorgânicos:
  4. Subheading 2811.12 Hydrogen cyanide (hydrocyanic acid)
  5. Subitem 2811.12.00 Hydrogen cyanide (hydrocyanic acid) Cianeto de hidrogênio (ácido cianídrico ou ácido hidrociânico)

Questions about NCM 2811.12.00

What is NCM 2811.12.00?

NCM 2811.12.00 (28111200) is the Brazilian (Mercosur) code for hydrogen cyanide (hydrocyanic acid). Its official Portuguese description is “Cianeto de hidrogênio (ácido cianídrico ou ácido hidrociânico)”.

What is the HS code for NCM 2811.12.00?

HS 2811.12 (Hydrogen cyanide (hydrocyanic acid)). 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 2811.12.00?

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.