Brazil NCM · 8-digit subitem

NCM 2933.33.42 – Diphenoxylate hydrochloride

NCM 2933.33.42 (also written 29333342) is Brazil's code for diphenoxylate hydrochloride. Its first 6 digits are HS code 2933.33.

Official description of NCM 2933.33.42

PortuguêsOfficial
Cloridrato de difenoxilato
EnglishUnofficial translation

Diphenoxylate hydrochloride

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

How to read NCM 2933.33.42

29Chapter 33Heading 33Subheading

HS code 2933.33
Same in every country

4Item 2Subitem

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 2933.3 Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure: Compostos cuja estrutura contém um ciclo piridina (hidrogenado ou não) não condensado:
  4. Subheading 2933.33 Heterocyclic compounds; containing an unfused pyridine ring (whether or not hydrogenated) in the structure, alfentanil (INN), anileridine (INN), bezitramide (INN), bromazepam (INN), carfentanil (INN), difenoxin (INN), diphenoxylate (INN), dipipanone (INN) Alfentanila (DCI), anileridina (DCI), bezitramida (DCI), bromazepam (DCI), carfentanila (DCI), cetobemidona (DCI), difenoxilato (DCI), difenoxina (DCI), dipipanona (DCI), fenciclidina (DCI) (PCP), fenoperidina (DCI), fentanila (DCI), metilfenidato (DCI), pentazocina (DCI), petidina (DCI), intermediário A da petidina (DCI), pipradrol (DCI), piritramida (DCI), propiram (DCI), remifentanila (DCI) e trimeperidina (DCI); sais destes produtos
  5. Item 2933.33.4 Diphenoxylate and its salts Difenoxilato e seus sais
  6. Subitem 2933.33.42 Diphenoxylate hydrochloride Cloridrato de difenoxilato

Other NCM codes under HS 2933.33

2933.33.11 AlfentanilAlfentanila 2933.33.12 AnileridineAnileridina 2933.33.19 Salts of alfentanil and anileridineOutros 2933.33.21 BezitramideBezitramida 2933.33.22 BromazepamBromazepam 2933.33.29 Salts of bezitramide and bromazepamOutros 2933.33.31 CarfentanilCarfentanila 2933.33.32 KetobemidoneCetobemidona 2933.33.39 Salts of carfentanil and ketobemidoneOutros 2933.33.41 DiphenoxylateDifenoxilato 2933.33.49 Other diphenoxylate saltsOutros 2933.33.51 DifenoxinDifenoxina 2933.33.52 DipipanoneDipipanona 2933.33.59 Salts of difenoxin and dipipanoneOutros 2933.33.61 Phencyclidine (PCP)Fenciclidina 2933.33.62 PhenoperidineFenoperidina 2933.33.63 FentanylFentanila 2933.33.69 Salts of phencyclidine, phenoperidine, fentanylOutros 2933.33.71 MethylphenidateMetilfenidato 2933.33.72 PentazocinePentazocina 2933.33.79 Salts of methylphenidate and pentazocineOutros 2933.33.81 PethidinePetidina 2933.33.82 Pethidine intermediate AIntermediário A da petidina 2933.33.83 PipradrolPipradrol 2933.33.84 Pethidine hydrochlorideCloridrato de petidina 2933.33.89 Other pethidine/intermediate A/pipradrol saltsOutros 2933.33.91 PiritramidePiritramida 2933.33.92 PropiramPropiram 2933.33.93 TrimeperidineTrimeperidina 2933.33.94 RemifentanilRemifentanila 2933.33.99 Salts of piritramide, propiram, remifentanil etcOutros

Questions about NCM 2933.33.42

What is NCM 2933.33.42?

NCM 2933.33.42 (29333342) is the Brazilian (Mercosur) code for diphenoxylate hydrochloride. Its official Portuguese description is “Cloridrato de difenoxilato”.

What is the HS code for NCM 2933.33.42?

HS 2933.33 (Heterocyclic compounds; containing an unfused pyridine ring (whether or not hydrogenated) in the structure, alfentanil (INN), anileridine (INN), bezitramide (INN), bromazepam (INN), carfentanil (INN), difenoxin (INN), diphenoxylate (INN), dipipanone (INN)). 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 2933.33.42?

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.