HSN Code 2911
Acetals and hemiacetals, whether or not with other oxygen
Acetals and hemiacetals, whether or not with other oxygen function, and their halogenated, sulphonated, nitrated or nitrosated derivatives
GST rate
| Gibberellic acid | 5% |
| All organic chemicals other than giberellic acid | 18% |
Codes under 2911
| Code | Description | GST rate |
|---|---|---|
| 2911 00 | Acetals and hemiacetals, whether or not with other oxygen function, and their halogenated, sulphonated, nitrated or nitrosated derivatives: | Varies |
| 2911 00 10 | Acetals and hemiacetals, whether or not with other oxygen function | Varies |
← Chapter 29: Organic chemicals and chemical compounds
Related HSN codes
2912Aldehydes, whether or not with other oxygen function2910Epoxides, epoxyalcohols, epoxyphenols and expoxyethers2913Halogenated, sulphonated, nitrated or nitrosated2909Ethers, ether-alcohols, ether-phenols2914Ketones and quinones, whether or not with other oxygen2908Halogenated, sulphonated, nitrated or nitrosated
Frequently Asked Questions
What is the HSN code for acetals and hemiacetals, whether or not with other oxygen?
The HSN code for acetals and hemiacetals, whether or not with other oxygen is 2911, under Chapter 29 (Organic chemicals and chemical compounds).
What is the GST rate on acetals and hemiacetals, whether or not with other oxygen?
It depends on the specific item: gibberellic acid is 5%; all organic chemicals other than giberellic acid is 18%.
How many digits of the HSN code go on a GST invoice?
It depends on your turnover in the previous financial year: businesses above ₹5 crore generally show 6 digits (8 for certain specified goods), and smaller businesses show 4 digits on B2B invoices. Check the current e-invoicing/HSN notification for the exact threshold that applies to you.
Rates as per Notification No. 9/2025-Central Tax (Rate), as amended, as of 7 October 2026. For guidance only — verify with your tax advisor.