Brazil NCM · 8-digit subitem

NCM 2926.90.91 – Adiponitrile (1,4-dicyanobutane)

NCM 2926.90.91 (also written 29269091) is Brazil's code for adiponitrile (1,4-dicyanobutane). Its first 6 digits are HS code 2926.90.

Official description of NCM 2926.90.91

PortuguêsOfficial
Adiponitrila (1,4-dicianobutano)
EnglishUnofficial translation

Adiponitrile (1,4-dicyanobutane)

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

How to read NCM 2926.90.91

29Chapter 26Heading 90Subheading

HS code 2926.90
Same in every country

9Item 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 29.26 Nitrile-function compounds Compostos de função nitrila.
  3. Subheading 2926.90 Nitrile-function compounds; n.e.c. heading no. 2926 Outros
  4. Item 2926.90.9 Other Outros
  5. Subitem 2926.90.91 Adiponitrile (1,4-dicyanobutane) Adiponitrila (1,4-dicianobutano)

Other NCM codes under HS 2926.90

2926.90.11 VerapamilVerapamil 2926.90.12 Verapamil hydrochlorideCloridrato 2926.90.19 Verapamil salts other than hydrochlorideOutros 2926.90.21 Alpha-cyano-3-phenoxybenzyl alcoholÁlcool alfa-ciano-3-fenoxibenzílico 2926.90.22 CyfluthrinCiflutrina 2926.90.23 CypermethrinCipermetrina 2926.90.24 DeltamethrinDeltametrina 2926.90.25 FenvalerateFenvalerato 2926.90.26 CyhalothrinCialotrina (cyhalothrin) 2926.90.29 Other α-cyano-3-phenoxybenzyl alcohol derivativesOutros 2926.90.30 Salts of methadone intermediateSais de intermediário da metadona 2926.90.92 Acetone cyanohydrinCianidrina de acetona (acetona cianidrina) 2926.90.93 ClosantelClosantel 2926.90.95 ChlorothalonilClorotalonil 2926.90.96 Ethyl cyanoacrylatesCianoacrilatos de etila 2926.90.99 Other nitrile-function compoundsOutros

Questions about NCM 2926.90.91

What is NCM 2926.90.91?

NCM 2926.90.91 (29269091) is the Brazilian (Mercosur) code for adiponitrile (1,4-dicyanobutane). Its official Portuguese description is “Adiponitrila (1,4-dicianobutano)”.

What is the HS code for NCM 2926.90.91?

HS 2926.90 (Nitrile-function compounds; n.e.c. heading no. 2926). 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 2926.90.91?

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.