Q3HSN Code 2837
Cyanides, cyanide oxides and complex cyanides
GST rate
| Thorium oxalate, Enriched KBF4 (enriched potassium fluroborate), Enriched elemental boron, Nuclear fuel | 5% |
| Anaesthetics, Potassium Iodate, Iodine, Steam | 5% |
| Micronutrients, which are covered under serial number 1(g) of Schedule 1, Part (A) of the Fertilizer Control Order, 1985 and are manufactured by the manufacturers which are registered under the Fertilizer Control Order, 1985 | 5% |
| All inorganic chemicals [other than those specified in notification th No.10/2025- Central Tax (Rate) dated 17 September 2025 or other Schedules of this notification] | 18% |
Codes under 2837
| Code | Description | GST rate |
|---|---|---|
| 2837 11 | Sodium — cyanides, cyanide oxides and complex cyanides | Varies |
| 2837 19 | Cyanides, cyanide oxides and complex cyanides › Other | Varies |
| 2837 19 10 | Potassium cyanide | Varies |
| 2837 19 20 | Double cyanide of potassium and sodium | Varies |
| 2837 20 | Complex cyanides: | Varies |
| 2837 20 10 | Ammonium sulphocyanide | Varies |
| 2837 20 20 | Potassium ferricyanide | Varies |
| 2837 20 30 | Potassium ferrocyanide | Varies |
| 2837 20 40 | Sodium ferrocyanide | Varies |
| 2837 20 50 | Sodium nitroprusside (sodium nitroferricyanide) | Varies |
← Chapter 28: Industrial gases and inorganic chemicals
Related HSN codes
Frequently Asked Questions
What is the HSN code for cyanides, cyanide oxides and complex cyanides?
The HSN code for cyanides, cyanide oxides and complex cyanides is 2837, under Chapter 28 (Industrial gases and inorganic chemicals).
What is the GST rate on cyanides, cyanide oxides and complex cyanides?
It depends on the specific item: thorium oxalate, enriched kbf4 (enriched potassium fluroborate), enriched elemental boron, nuclear fuel is 5%; anaesthetics, potassium iodate, iodine, steam is 5%; micronutrients, which are covered under serial number 1(g) of schedule 1, part (a) of the fertilizer control order, 1985 and are manufactured by the manufacturers which are registered under the fertilizer control order, 1985 is 5%; all inorganic chemicals [other than those specified in notification th no.10/2025- central tax (rate) dated 17 september 2025 or other schedules of this notification] 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.