Perfluorooctanesulfonic acidCAS 1763-23-1 · import duty, licences and trade rules in India
Perfluorooctane-1-sulfonic acid is a perfluoroalkanesulfonic acid that is octane-1-sulfonic acid in which all seventeen of the hydrogens that are attached to carbons hvae been replaced by fluorines. For trade in India: OK to trade, but watch: global treaties & export markets; safety. Import duty is about 24.49% (tariff item 2904 31 00). DGFT policy: import Free, export Free. EU CMR classification: Repr. 1B.
Checked 2026-11-12 against official Indian and international lists. Sources are given under each answer.
What Perfluorooctanesulfonic acid is, its uses, properties and related chemicals: Perfluorooctanesulfonic acid on ChemXpress →
Every answer, with its source
Rules in IndiaOK
- Not on the Indian banned-pesticide, drug-precursor, narcotic, psychotropic or new-drug lists we check.
- Normal factory, storage and GST rules still apply.
- Import policy (DGFT ITC(HS)) for tariff item 2904 31 00: Free, so no import licence is needed under trade policy.
Exporting from IndiaOK
- Not on the SCOMET export-control list or the precursor export list.
- The buyer’s country may still have its own import rules.
- Export policy (DGFT ITC(HS)) for tariff item 2904 31 00: Free.
Global treaties & export marketsCHECK
- Perfluorooctane sulfonic acid (PFOS), its salts and perfluorooctane sulfonyl fluoride (PFOSF) is listed in Annex B of the Stockholm Convention: production and use are restricted worldwide to the purposes the treaty allows.
- On the Rotterdam Convention prior-consent list (Annex III, industrial): Perfluorooctane sulfonic acid, perfluorooctane sulfonates, perfluorooctane sulfonamides and perfluorooctane sulfonyls.
- Each importing country has said whether it accepts this chemical; an export must follow that decision. Check the country’s import response on pic.int before you ship.
- No EU REACH registration found: an EU importer (or your only representative) must register it before importing a tonne or more a year. Medicines and pesticide actives follow their own EU rules.
- Active on the US TSCA Inventory, so it can be imported into the US without a new-chemical notice.
- US TSCA: subject to a significant new use rule (SNUR): new uses need a notice to EPA first.
- EU: harmonised classification as a reproductive toxicant category 1B (CLP Annex VI, index 607-624-00-8). It may not be sold to the general public in the EU as such or in mixtures above the limit (REACH Annex XVII, entries 28-30), and its use at work must be minimised.
Import dutyOK
- About ₹24,490 duty on every ₹1,00,000 of import value (CIF).
- Made up of basic customs duty 5%, social welfare surcharge 0.5% and IGST 18%. IGST can usually be claimed back as input tax credit.
- Tariff item 2904 31 00: Perfluorooctane sulphonic acid.
SafetySTOP
- Burns skin and eyes, eats into metal
- Irritates skin, eyes or breathing
- Can cause long-term health damage
- Harmful to fish and water life
- Harmful if swallowed or if inhaled
- Harmful if swallowed
- Causes severe skin burns and eye damage
- Harmful if inhaled
- Suspected of causing cancer
- Always read the supplier’s safety data sheet (SDS) before handling.
Storage, transport & PESOOK
- Flash point about 11 °C (Hazardous Substances Data Bank (HSDB)).
- It is not a hydrocarbon, so the Petroleum Rules do not class it; storage still follows the state fire service’s rules and the factory licence.
Price and suppliersNO DATA
- Post a requirement and we will find suppliers for you.
Key facts
| CAS number | 1763-23-1 |
|---|---|
| Formula | C8HF17O3S |
| Also called | PFOS, Perfluorooctane sulfonic acid, Perfluorooctylsulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluorooctane-1-sulfonic acid |
| Tariff item (HS) | 2904 31 00 |
| Total import duty | about 24.49% |
| Anti-dumping duty (most producers) | None found |
| DGFT import policy | Free |
| DGFT export policy | Free |
| SCOMET (export control) | Not listed |
| NDPS / precursor | Not listed |
| EU CMR classification | Repr. 1B |
Questions about Perfluorooctanesulfonic acid
What is the import duty on Perfluorooctanesulfonic acid in India?
The total import duty on Perfluorooctanesulfonic acid is about 24.49% of the import value under tariff item 2904 31 00, including basic customs duty, the social welfare surcharge and IGST. Check the latest notifications before you import.
Is there anti-dumping duty on Perfluorooctanesulfonic acid?
No anti-dumping duty on Perfluorooctanesulfonic acid was found in the Customs (ADD) notifications in force.
What is the HS code (tariff item) of Perfluorooctanesulfonic acid in India?
Perfluorooctanesulfonic acid falls under tariff item 2904 31 00 of the Customs Tariff of India.
Is Perfluorooctanesulfonic acid restricted or licensed in India?
No special Indian ban or licence found. Not on the Indian banned-pesticide, drug-precursor, narcotic, psychotropic or new-drug lists we check. Normal factory, storage and GST rules still apply.
Can Perfluorooctanesulfonic acid be imported freely into India?
Under DGFT's ITC(HS) import policy, Perfluorooctanesulfonic acid is Free.
Does exporting Perfluorooctanesulfonic acid from India need a licence?
No export licence needed. Not on the SCOMET export-control list or the precursor export list.
Is Perfluorooctanesulfonic acid hazardous?
Very hazardous: strict controls needed. Burns skin and eyes, eats into metal. Irritates skin, eyes or breathing. Can cause long-term health damage.
Is Perfluorooctanesulfonic acid regulated under global treaties or in the EU and US?
Restricted worldwide. Perfluorooctane sulfonic acid (PFOS), its salts and perfluorooctane sulfonyl fluoride (PFOSF) is listed in Annex B of the Stockholm Convention: production and use are restricted worldwide to the purposes the treaty allows. On the Rotterdam Convention prior-consent list (Annex III, industrial): Perfluorooctane sulfonic acid, perfluorooctane sulfonates, perfluorooctane sulfonamides and perfluorooctane sulfonyls.
Related chemicals
Guidance from official lists, not legal advice. Rules change; confirm with DGFT, customs or the regulator before you trade.