(+-)-2-Mercaptopropionic acidCAS 79-42-5 · import duty, licences and trade rules in India
2-mercaptopropanoic acid is a mercaptopropanoic acid. For trade in India: OK to trade, but watch: safety. 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.
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.
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.
SafetySTOP
- Burns skin and eyes, eats into metal
- Poisonous, even in small amounts
- Toxic if swallowed
- Toxic in contact with skin
- Causes severe skin burns and eye damage
- Fatal if inhaled
- Always read the supplier’s safety data sheet (SDS) before handling.
Storage, transport & PESOOK
- Ships as UN 2936 (Poison): 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 | 79-42-5 |
|---|---|
| Formula | C3H6O2S |
| Also called | Thiolactic acid, 2-Mercaptopropanoic acid, 2-Thiolactic acid, alpha-Mercaptopropionic acid |
| 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 (+-)-2-Mercaptopropionic acid
What is the import duty on (+-)-2-Mercaptopropionic acid in India?
The total import duty on (+-)-2-Mercaptopropionic acid 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 (+-)-2-Mercaptopropionic acid?
No anti-dumping duty on (+-)-2-Mercaptopropionic acid was found in the Customs (ADD) notifications in force.
What is the HS code (tariff item) of (+-)-2-Mercaptopropionic acid in India?
(+-)-2-Mercaptopropionic acid 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 (+-)-2-Mercaptopropionic 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.
Does exporting (+-)-2-Mercaptopropionic acid from India need a licence?
No export licence needed. Not on the SCOMET export-control list or the precursor export list.
Is (+-)-2-Mercaptopropionic acid hazardous?
Very hazardous: strict controls needed. Burns skin and eyes, eats into metal. Poisonous, even in small amounts. Toxic if swallowed.
Is (+-)-2-Mercaptopropionic acid 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.