HSN code 290431
Sub-heading in chapter 29 — Organic chemicals
Perfluorooctane sulphonic acid
Classification
| Code type | HSN — Harmonized System of Nomenclature |
|---|---|
| Level | Sub-heading (6 digits) |
| Section | Section VI — Chemical and allied products |
| Chapter 29 | Organic chemicals |
| Heading 2904 | Sulphonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated |
| Sub-heading 290431 | Perfluorooctane sulphonic acid |
1 code under HSN 290431
| HSN code | Description |
|---|---|
29043100 | Perfluorooctane sulphonic acid |
Using HSN 290431 in GST
On GST invoices, a business with annual turnover up to ₹5 crore must show at least the first 4 digits (2904) on B2B invoices, and a business above ₹5 crore must show 6 digits (290431) on all invoices. The full 8-digit code is used for imports and exports.
The GST rate depends on the exact goods or service and any conditions in the rate notification, so it is not listed here. Check the official CBIC GST rate finder, then work out the tax with the GST calculator or make a bill with the GST invoice generator.
Frequently asked questions
What is HSN code 290431?
HSN code 290431 is the sub-heading for: Perfluorooctane sulphonic acid.
What is the GST rate for HSN 290431?
GST rates are set by CBIC rate notifications and can depend on conditions, so check the CBIC GST rate finder for HSN 290431 before invoicing.
How many digits of HSN 290431 should I write on my invoice?
Up to ₹5 crore turnover: at least 4 digits (2904) on B2B invoices. Above ₹5 crore: 6 digits (290431) on all invoices.