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HSN 2934: Nucleic acids and their salts
HSN code 2934 covers: Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds.
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 2934
This heading has 6 subheadings, including: Heterocyclic compounds; containing an unfused thiazole ring (whether or not hydrogenated) in the structure, Heterocyclic compounds; containing in the structure, a benzothiazole ring-system (whether or not hydrogenated), not further fused, Heterocyclic compounds; containing in the structure, a phenothiazine ring-system (whether or not hydrogenated), not further fused, Heterocyclic compounds; other heterocyclic compounds, n.e.c. in 2934.1, 2934.2 and 2934.3, Heterocyclic compounds; other fentanyls n.e.c. in 2934, and their derivatives, Nucleic acids and their salts, other heterocyclic compounds, n.e.c. in heading number 2934. Use the HSN/SAC finder to pin down the exact code.
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