Tetrahydrophthalic anhydride (CAS 85-43-8): import duty, licences and trade rules in India
1,2,3,6-tetrahydrophthalic anhydride is a cyclic dicarboxylic anhydride that is 1,3,3a,4,7,7a-hexahydro-2-benzofuran carrying oxo groups at positions 1 and 3. 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 2917 (estimate)).
Checked 2026-10-31 against official Indian and international lists. Sources are given under each answer.
Key facts
| CAS number | 85-43-8 |
|---|---|
| Formula | C8H8O3 |
| Also called | Tetrahydroftalanhydrid, Rikacid TH, Tetrahydrophthalic acid anhydride, Memtetrahydro phtalic anhydride |
| Tariff item (HS) | 2917 (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.
- 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.
- EU: harmonised classification (CLP Annex VI, index 607-099-00-5): Eye Dam. 1, Resp. Sens. 1, Skin Sens. 1, Aquatic Chronic 3. Suppliers in the EU must label it this way.
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: 2917, polycarboxylic acids and their derivatives (carboxylic acid group).
- 29 of 31 lines under heading 2917 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.
SafetyCHECK
- Burns skin and eyes, eats into metal
- Irritates skin, eyes or breathing
- Can cause long-term health damage
- Harmful if swallowed
- May cause an allergic skin reaction
- Causes serious eye damage
- May cause allergy or asthma symptoms or breathing difficulties if inhaled
- Harmful to aquatic life with long lasting effects
- Always read the supplier’s safety data sheet (SDS) before handling.
Storage, transport & PESOOK
- Ships as UN 1760 / UN 2698 (Corrosive): 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.
Questions about Tetrahydrophthalic anhydride
What is the import duty on Tetrahydrophthalic anhydride in India?
The total import duty on Tetrahydrophthalic anhydride is about 27.73% of the import value under tariff item 2917 (estimate), including basic customs duty, the social welfare surcharge and IGST. Check the latest notifications before you import.
Is there anti-dumping duty on Tetrahydrophthalic anhydride?
No anti-dumping duty on Tetrahydrophthalic anhydride was found in the Customs (ADD) notifications in force.
What is the HS code (tariff item) of Tetrahydrophthalic anhydride in India?
Tetrahydrophthalic anhydride falls under tariff item 2917 (estimate) of the Customs Tariff of India.
Is Tetrahydrophthalic anhydride 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 Tetrahydrophthalic anhydride from India need a licence?
No export licence needed. Not on the SCOMET export-control list or the precursor export list.
Is Tetrahydrophthalic anhydride hazardous?
Dangerous: handle with proper protection. Burns skin and eyes, eats into metal. Irritates skin, eyes or breathing. Can cause long-term health damage.
Is Tetrahydrophthalic anhydride 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.