Bis(tributyltin) oxide (CAS 56-35-9): import duty, licences and trade rules in India
Tributyltin oxide is an inorganic molecular entity. For trade in India: OK to trade, but watch: global treaties & export markets; safety; food residue limits. Import duty is about 27.73% (tariff item 2931 (estimate)).
Checked 2026-10-31 against official Indian and international lists. Sources are given under each answer.
Key facts
| CAS number | 56-35-9 |
|---|---|
| Formula | C24H54OSn2 |
| Also called | BIS(TRIBUTYLTIN) OXIDE, Hexabutyldistannoxane, Bis(tributyltin)oxide, Butinox |
| Tariff item (HS) | 2931 (estimate) |
| Total import duty | about 27.73% |
| Anti-dumping duty (most producers) | None found |
| SCOMET (export control) | Not listed |
| NDPS / precursor | Not listed |
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.
- Not approved as a pesticide in the EU: food sent there must carry almost none of it.
- The buyer’s country may still have its own import rules.
Global treaties & export marketsCHECK
- On the Rotterdam Convention prior-consent list (Annex III, pesticide): Tributyl tin compounds.
- On the Rotterdam Convention prior-consent list (Annex III, industrial): Tributyltin compounds.
- 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.
- On the EU REACH Candidate List of substances of very high concern (pbt), since 28-Oct-2008. EU buyers must pass on safety information for articles containing more than 0.1%, and it may later need an authorisation.
- 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).
- No tariff line names this chemical, so we worked out its likely heading from its structure: 2931, other organo-inorganic compounds (e.g. organo-phosphorus, organo-silicon) (metal bonded to carbon).
- All lines under heading 2931 pay basic customs duty 7.5%; with social welfare surcharge and IGST 18% that makes about 27.73%.
- Confirm the exact 8-digit code with your customs broker before you import.
SafetySTOP
- Poisonous, even in small amounts
- Irritates skin, eyes or breathing
- Can cause long-term health damage
- Harmful to fish and water life
- Toxic if swallowed
- Harmful in contact with skin
- Causes skin irritation
- Causes serious eye irritation
- Toxic if inhaled
- Always read the supplier’s safety data sheet (SDS) before handling.
Storage, transport & PESOOK
- Ships as UN 2788 / UN 3020 (Poison): dangerous-goods rules apply by road, sea (IMDG) and air (IATA), with labels, packaging and a transport document.
Food residue limitsCHECK
- India (FSSAI) has no specific limit, so the default 0.01 mg/kg applies to food.
- EU: not approved; most EU food limits are at the detection limit.
Price and suppliersNO DATA
- Post a requirement and we will find suppliers for you.
Questions about Bis(tributyltin) oxide
What is the import duty on Bis(tributyltin) oxide in India?
The total import duty on Bis(tributyltin) oxide is about 27.73% of the import value under tariff item 2931 (estimate), including basic customs duty, the social welfare surcharge and IGST. Check the latest notifications before you import.
Is there anti-dumping duty on Bis(tributyltin) oxide?
No anti-dumping duty on Bis(tributyltin) oxide was found in the Customs (ADD) notifications in force.
What is the HS code (tariff item) of Bis(tributyltin) oxide in India?
Bis(tributyltin) oxide falls under tariff item 2931 (estimate) of the Customs Tariff of India.
Is Bis(tributyltin) oxide 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 Bis(tributyltin) oxide from India need a licence?
No export licence needed. Not on the SCOMET export-control list or the precursor export list.
Is Bis(tributyltin) oxide hazardous?
Very hazardous: strict controls needed. Poisonous, even in small amounts. Irritates skin, eyes or breathing. Can cause long-term health damage.
Is Bis(tributyltin) oxide regulated under global treaties or in the EU and US?
Export needs the importing country’s consent. On the Rotterdam Convention prior-consent list (Annex III, pesticide): Tributyl tin compounds. On the Rotterdam Convention prior-consent list (Annex III, industrial): Tributyltin compounds.
Related chemicals
Guidance from official lists, not legal advice. Rules change; confirm with DGFT, customs or the regulator before you trade.