# 2933 — Heterocyclic compounds with nitrogen hetero-atom(s) only

HS code 2933 classifies Heterocyclic compounds with nitrogen hetero-atom(s) only. It belongs to Chapter 29 (Organic chemicals) of Section VI (Products of the chemical or allied industries) of the Harmonized System.

> Section VI · Products of the chemical or allied industries
> Chapter 29 · Organic chemicals

**HS code:** `2933`

## Description

Heterocyclic compounds with nitrogen hetero-atom(s) only

## Subheadings

- `293311` — Phenazone (antipyrin) and its derivatives
- `293319` — Other
- `293321` — Hydantoin and its derivatives
- `293329` — Other
- `293331` — Pyridine and its salts
- `293332` — Piperidine and its salts
- `293333` — Alfentanil (INN), anileridine (INN), bezitramide (INN), bromazepam (INN), carfentanil (INN), difenoxin (INN), diphenoxylate (INN), dipipanone (INN), fentanyl (INN), ketobemidone (INN), methylphenidate (INN), pentazocine (INN), pethidine (INN), pethidine (INN) intermediate A, phencyclidine (INN) (PCP), phenoperidine (INN), pipradrol (INN), piritramide (INN), propiram (INN), remifentanil (INN) and trimeperidine (INN); salts thereof
- `293334` — Other fentanyls and their derivatives
- `293335` — 3-Quinuclidinol
- `293336` — 4-Anilino-N-phenethylpiperidine (ANPP)
- `293337` — N-Phenethyl-4-piperidone (NPP)
- `293339` — Other
- `293341` — Levorphanol (INN) and its salts
- `293349` — Other
- `293352` — Malonylurea (barbituric acid) and its salts
- `293353` — Allobarbital (INN), amobarbital (INN), barbital (INN), butalbital (INN), butobarbital, cyclobarbital (INN), methylphenobarbital (INN), pentobarbital (INN), phenobarbital (INN), secbutabarbital (INN), secobarbital (INN) and vinylbital (INN); salts thereof
- `293354` — Other derivatives of malonylurea (barbituric acid); salts thereof
- `293355` — Loprazolam (INN), mecloqualone (INN), methaqualone (INN) and zipeprol (INN); salts thereof
- `293359` — Other
- `293361` — Melamine
- `293369` — Other
- `293371` — 6-Hexanelactam (epsilon-caprolactam)
- `293372` — Clobazam (INN) and methyprylon (INN)
- `293379` — Other lactams
- `293391` — Alprazolam (INN), camazepam (INN), chlordiazepoxide (INN), clonazepam (INN), clorazepate, delorazepam (INN), diazepam (INN), estazolam (INN), ethyl loflazepate (INN), fludiazepam (INN), flunitrazepam (INN), flurazepam (INN), halazepam (INN), lorazepam (INN), lormetazepam (INN), mazindol (INN), medazepam (INN), midazolam (INN), nimetazepam (INN), nitrazepam (INN), nordazepam (INN), oxazepam (INN), pinazepam (INN), prazepam (INN), pyrovalerone (INN), temazepam (INN), tetrazepam (INN) and triazolam (INN); salts thereof
- `293392` — Azinphos-methyl (ISO)
- `293399` — Other

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Source: https://hscode.eximagent.ai/29/2933
Last updated: 2026-06-03
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