ButanethiolCAS 109-79-5 · import duty, licences and trade rules in India
Butanethiol is an alkanethiol. For trade in India: No ban or licence needed. Normal trade rules apply; handle as its safety advice says. Import duty is about 27.73% (tariff item 2930 90 (subheading)).
Checked 2026-11-12 against official Indian and international lists. Sources are given under each answer.
What Butanethiol is, its uses, properties and related chemicals: Butanethiol 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.
- On India’s hazardous chemicals list (MSIHC Rules 1989). Importers must send the State authorities the consignment details and full safety information before each import (30 days ahead where possible, never later than the import date) and keep import records.
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.
Global treaties & export marketsOK
- Not listed by the Stockholm Convention (persistent pollutants), the Rotterdam Convention (prior consent before export) or the Montreal Protocol (ozone layer).
- Registered under EU REACH, so EU importers can buy it under an existing registration.
- Active on the US TSCA Inventory, so it can be imported into the US without a new-chemical notice.
- Listed on the Australian Inventory of Industrial Chemicals (AICIS), so it can be introduced into Australia as an existing industrial chemical.
Import dutyOK
- About ₹27,730 duty on every ₹1,00,000 of import value (CIF).
- The EU customs inventory (ECICS) classifies it under CN 2930 90 95, so its HS subheading is 2930 90.
- India splits subheading 2930 90 into 16 lines: 2930 90 10 (Other › Thiourea (sulphourea)); 2930 90 20 (Other › Calcium salts of methionine); 2930 90 30 (Other › Thio sulphonic acid); 2930 90 40 (Other › L-cystine (alpha-amino beta-thiopropionic acid)-sulphur containing amino); 2930 90 50 (Other › Sulphinic acid); 2930 90 60 (Other › Sulphoxide); and 10 more.
- Basic customs duty 7.5% on every one of them; with social welfare surcharge and IGST 18% that makes about 27.73%.
- Lines that name a chemical are for that chemical; one that no line names goes under "Other" (2930 90 99).
- Confirm the exact 8-digit line with your customs broker before you import.
SafetyCHECK
- Catches fire easily
- Irritates skin, eyes or breathing
- Highly flammable liquid and vapor
- Harmful if swallowed
- Causes serious eye irritation
- Harmful if inhaled
- Always read the supplier’s safety data sheet (SDS) before handling.
Storage, transport & PESOOK
- Flash point about 2 °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.
- Ships as UN 2347 (Flammable Liquid): dangerous-goods rules apply by road, sea (IMDG) and air (IATA), with labels, packaging and a transport document.
Price and suppliersNO DATA
- Post a requirement and we will find suppliers for you.
Key facts
| CAS number | 109-79-5 |
|---|---|
| Formula | C4H10S |
| Also called | Butanethiol, butane-1-thiol, BUTYL MERCAPTAN, n-Butyl mercaptan |
| Tariff item (HS) | 2930 90 (subheading) |
| Total import duty | about 27.73% |
| Anti-dumping duty (most producers) | None found |
| SCOMET (export control) | Not listed |
| NDPS / precursor | Not listed |
Questions about Butanethiol
What is the import duty on Butanethiol in India?
The total import duty on Butanethiol is about 27.73% of the import value under tariff item 2930 90 (subheading), including basic customs duty, the social welfare surcharge and IGST. Check the latest notifications before you import.
Is there anti-dumping duty on Butanethiol?
No anti-dumping duty on Butanethiol was found in the Customs (ADD) notifications in force.
What is the HS code (tariff item) of Butanethiol in India?
Butanethiol falls under HS subheading 2930 90, as classified by the EU customs inventory (ECICS). India splits that subheading into several 8-digit lines; confirm the exact line with your customs broker.
Is Butanethiol restricted or licensed in India?
No ban or licence; import paperwork applies. Not on the Indian banned-pesticide, drug-precursor, narcotic, psychotropic or new-drug lists we check. On India’s hazardous chemicals list (MSIHC Rules 1989). Importers must send the State authorities the consignment details and full safety information before each import (30 days ahead where possible, never later than the import date) and keep import records.
Does exporting Butanethiol from India need a licence?
No export licence needed. Not on the SCOMET export-control list or the precursor export list.
Is Butanethiol hazardous?
Dangerous: handle with proper protection. Catches fire easily. Irritates skin, eyes or breathing. Highly flammable liquid and vapor.
Is Butanethiol regulated under global treaties or in the EU and US?
No treaty or export-market restriction found. Not listed by the Stockholm Convention (persistent pollutants), the Rotterdam Convention (prior consent before export) or the Montreal Protocol (ozone layer). Registered under EU REACH, so EU importers can buy it under an existing registration.
Related chemicals
Guidance from official lists, not legal advice. Rules change; confirm with DGFT, customs or the regulator before you trade.