290431Sub-heading (6-digit)Section VI

HSN Code 290431 – Perfluorooctane Sulphonic Acid

Full GST classification for Perfluorooctane Sulphonic Acid — chapter, heading and tariff hierarchy, GST rate slabs and related HSN codes. Updated for India GST.

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HSN Code

290431

Chapter

29

Digits

6-digit

Section

VI

What is HSN Code 290431?

HSN code 290431 is the Harmonized System of Nomenclature classification for Perfluorooctane Sulphonic Acid under India's Goods and Services Tax (GST). It is a 6-digit code sitting at the sub-heading (6-digit) level of the HSN hierarchy.

This code belongs to Chapter 29 — Organic Chemicals, which is part of Section VI: Chemical Products. Every GST-registered business supplying perfluorooctane sulphonic acid must quote HSN 290431 (or the digit-length required for its turnover) on tax invoices and in GSTR-1.

Classification breakdown of 290431

LevelCodeDescription
Chapter29organic chemicals
Heading2904sulphonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated
Sub-heading290431perfluorooctane sulphonic acid

GST rate for HSN 290431

Goods under HSN 290431 attract GST at one of the five standard slabs. The exact rate depends on the specific product and the latest GST Council notification — always confirm before invoicing.

0%

Nil / Exempt

Fresh produce, milk, cereals, books

5%

Merit rate

Essentials, packaged food, transport

12%

Standard-low

Processed food, mobiles, apparel > ₹1,000

18%

Standard

Most goods, electronics, services

28%

Demerit / luxury

Cars, cement, aerated drinks, tobacco

Find the exact GST rate for Perfluorooctane Sulphonic Acid →

HSN Code 290431 — FAQs

What is HSN code 290431?

HSN code 290431 classifies "Perfluorooctane Sulphonic Acid" under India's GST regime. It falls under Chapter 29 (Organic Chemicals) of the Harmonized System of Nomenclature.

How many digits is HSN code 290431?

290431 is a 6-digit HSN code — a sub-heading (6-digit). Businesses declare 4-digit HSN (turnover up to ₹5 crore) or 6-digit HSN (above ₹5 crore) on GST invoices; 8-digit codes are used for exports and imports.

What is the GST rate for HSN code 290431?

Goods under HSN 290431 are taxed at one of the GST slabs — 0%, 5%, 12%, 18% or 28% — depending on the exact product and the latest GST Council notification. Use the Laabam.One GST Rate Finder to confirm the current rate for Perfluorooctane Sulphonic Acid.

Which chapter does HSN code 290431 belong to?

HSN 290431 belongs to Chapter 29 — Organic Chemicals, part of Section VI: Chemical Products.

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