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HSN 2933: Heterocyclic compounds with nitrogen hetero-atom(s) only

HSN code 2933 covers: Heterocyclic compounds with nitrogen hetero-atom(s) only.

After the 22 Sep 2025 reform most goods fall under 5% or 18% GST (a few sin/luxury items are 40%). We don't show an exact rate for this specific code because it isn't verified — check the CBIC rate finder or your CA, then enter that rate when you invoice.

Rates were revised in the 22 Sep 2025 GST reform (now a two-slab 5% / 18% structure for most goods, with a 40% slab for sin/luxury items). This is a reference, not tax advice — confirm the exact rate for your specific item with your CA.

What's inside 2933

This heading has 27 subheadings, including: Heterocyclic compounds; with nitrogen hetero-atom(s) only, containing an unfused pyrazole ring (whether or not hydrogenated) in the structure, phenazone (antipyrin) and its derivatives, Heterocyclic compounds; with nitrogen hetero-atom(s) only, containing an unfused pyrazole ring (whether or not hydrogenated) in the structure, other than henazone (antipyrin) and its derivatives, Heterocyclic compounds; with nitrogen hetero-atom(s) only, containing an unfused imidazole ring (whether or not hydrogenated) in the structure, hydantoin and its derivatives, Heterocyclic compounds; with nitrogen hetero-atom(s) only, containing an unfused imidazole ring (whether or not hydrogenated) in the structure, other than hydantoin and its derivatives, Heterocyclic compounds; containing an unfused pyridine ring (whether or not hydrogenated) in the structure, pyridine and its salts, Heterocyclic compounds; containing an unfused pyridine ring (whether or not hydrogenated) in the structure, piperidine and its salts, 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), Heterocyclic compounds; containing an unfused pyridine ring (whether or not hydrogenated) in the structure, other fentanyls and their derivatives…. Use the HSN/SAC finder to pin down the exact code.

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