Q3HSN Code 2912
Aldehydes, whether or not with other oxygen function
Aldehydes, whether or not with other oxygen function, cyclic polymers of aldehydes, paraformaldehyde
GST rate
| Gibberellic acid | 5% |
| All organic chemicals other than giberellic acid | 18% |
Codes under 2912
| Code | Description | GST rate |
|---|---|---|
| 2912 11 | Methanal (formaldehyde) | Varies |
| 2912 12 | Ethanal (acetaldehyde) | Varies |
| 2912 13 00 | Aldehydes, whether or not with other oxygen function; cyclic polymers of aldehydes; paraformaldehyde - acyclic aldehydes without other oxygen function: butanal (butyraldehyde, normal isomer) | Varies |
| 2912 19 | Aldehydes, whether or not with other oxygen function, cyclic polymers of aldehydes, paraformaldehyde › Other | Varies |
| 2912 19 10 | Crotonaldehyde | Varies |
| 2912 19 20 | Heptaldehyde (heptanal) | Varies |
| 2912 19 30 | Glyoxal | Varies |
| 2912 21 | Benzaldehyde | Varies |
| 2912 29 | Aldehydes, whether or not with other oxygen function, cyclic polymers of aldehydes, paraformaldehyde › Other | Varies |
| 2912 29 10 | Cinnamic aldehyde | Varies |
| 2912 29 20 | Phenyl acetaldehyde | Varies |
| 2912 29 30 | Hexyl cinnamic aldehyde | Varies |
| 2912 41 | Vanillin (4-hydroxy-3methoxy benzaldehyde) | Varies |
| 2912 42 | Ethylvanillin (3-ethoxy-4-hydroxy-benzaldehyde) | Varies |
| 2912 49 | Aldehydes, whether or not with other oxygen function, cyclic polymers of aldehydes, paraformaldehyde › Other | Varies |
| 2912 49 10 | Anisic aldehyde (anisaldehyde) | Varies |
| 2912 49 20 | Heliotropin (piperonyl aldehyde) | Varies |
| 2912 49 30 | Thiacetazone | Varies |
| 2912 49 40 | 3,4,5-Trimethoxy-benzaldehyde | Varies |
| 2912 49 91 | Aldehyde-alcohols | Varies |
| 2912 50 | Cyclic polymers of aldehydes | Varies |
| 2912 50 10 | Metaldehyde | Varies |
| 2912 60 | Paraformaldehyde | Varies |
← Chapter 29: Organic chemicals and chemical compounds
Related HSN codes
2913Halogenated, sulphonated, nitrated or nitrosated2911Acetals and hemiacetals, whether or not with other oxygen2914Ketones and quinones, whether or not with other oxygen2910Epoxides, epoxyalcohols, epoxyphenols and expoxyethers2915Saturated acyclic monocarboxylic acids and their2909Ethers, ether-alcohols, ether-phenols
Frequently Asked Questions
What is the HSN code for aldehydes, whether or not with other oxygen function?
The HSN code for aldehydes, whether or not with other oxygen function is 2912, under Chapter 29 (Organic chemicals and chemical compounds).
What is the GST rate on aldehydes, whether or not with other oxygen function?
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.