Brazil NCM · 8-digit subitem

NCM 2933.49.11 – 2,3-Quinolinedicarboxylic acid

NCM 2933.49.11 (also written 29334911) is Brazil's code for 2,3-Quinolinedicarboxylic acid. Its first 6 digits are HS code 2933.49.

Official description of NCM 2933.49.11

PortuguêsOfficial
Ácido 2,3-quinolinodicarboxílico
EnglishUnofficial translation

2,3-Quinolinedicarboxylic acid

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

How to read NCM 2933.49.11

29Chapter 33Heading 49Subheading

HS code 2933.49
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 29 Organic chemicals Produtos químicos orgânicos.
  2. Heading 29.33 Heterocyclic compounds with nitrogen hetero-atom(s) only Compostos heterocíclicos exclusivamente de heteroátomo(s) de nitrogênio (azoto).
  3. Group 2933.4 Compounds containing in the structure a quinoline or isoquinoline ring-system (whether or not hydrogenated), not further fused: Compostos cuja estrutura contém ciclos quinoleína ou isoquinoleína (hidrogenados ou não) sem outras condensações:
  4. Subheading 2933.49 Heterocyclic compounds; containing a quinoline or isoquinoline ring-system (whether or not hydrogenated) in the structure, not further fused, other than levorphanol (INN) and its salts Outros
  5. Item 2933.49.1 Derivatives of quinolinecarboxylic acid Derivados do ácido quinolinocarboxílico
  6. Subitem 2933.49.11 2,3-Quinolinedicarboxylic acid Ácido 2,3-quinolinodicarboxílico

Other NCM codes under HS 2933.49

2933.49.12 RosoxacinRosoxacina 2933.49.13 ImazaquinImazaquin 2933.49.19 Other quinolinecarboxylic acid derivativesOutros 2933.49.20 OxamniquineOxaminiquina 2933.49.30 BroxyquinolineBroxiquinolina 2933.49.40 Esters of levorphanolÉsteres do levorfanol 2933.49.90 Other quinoline or isoquinoline compoundsOutros

Questions about NCM 2933.49.11

What is NCM 2933.49.11?

NCM 2933.49.11 (29334911) is the Brazilian (Mercosur) code for 2,3-Quinolinedicarboxylic acid. Its official Portuguese description is “Ácido 2,3-quinolinodicarboxílico”.

What is the HS code for NCM 2933.49.11?

HS 2933.49 (Heterocyclic compounds; containing a quinoline or isoquinoline ring-system (whether or not hydrogenated) in the structure, not further fused, other than levorphanol (INN) and its salts). 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 2933.49.11?

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.