Dapsone (CAS 80-08-0): import duty, licences and trade rules in India
Dapsone is a sulfone that is diphenylsulfone in which the hydrogen atom at the 4 position of each of the phenyl groups is substituted by an amino group. For trade in India: OK to trade, but watch: rules in India. Import duty is about 27.73% (tariff item 2930 (estimate)). Drug schedule: H.
Checked 2026-10-31 against official Indian and international lists. Sources are given under each answer.
Key facts
| CAS number | 80-08-0 |
|---|---|
| Formula | C12H12N2O2S |
| Also called | 4,4'-Sulfonyldianiline, Diaphenylsulfone, 4,4'-Diaminodiphenyl sulfone, Dapson |
| Tariff item (HS) | 2930 (estimate) |
| Total import duty | about 27.73% |
| Anti-dumping duty (most producers) | None found |
| SCOMET (export control) | Not listed |
| NDPS / precursor | Not listed |
| Drug schedule | H |
Every answer, with its source
Rules in IndiaCHECK
- Not on the Indian banned-pesticide, drug-precursor, narcotic, psychotropic or new-drug lists we check.
- Normal factory, storage and GST rules still apply.
- A Schedule H prescription drug: medicines containing it are sold only on prescription, and making or selling it needs a drug licence. (Drugs and Cosmetics Rules, 1945; salts and preparations are covered too.)
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 612-084-00-1): Acute Tox. 4. 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: 2930, organo-sulphur compounds (sulphur bonded to carbon).
- All lines under heading 2930 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
- Irritates skin, eyes or breathing
- Can cause long-term health damage
- Harmful to fish and water life
- Harmful if swallowed
- May cause damage to organs
- May cause damage to organs through prolonged or repeated exposure
- Toxic to aquatic life with long lasting effects
- Always read the supplier’s safety data sheet (SDS) before handling.
Price and suppliersNO DATA
- Post a requirement and we will find suppliers for you.
US patentsCHECK
- The molecule is free, but some US formulations or uses are still protected.
- 17 generic companies already sell it in the US.
- Indian patents are not checked.
Questions about Dapsone
What is the import duty on Dapsone in India?
The total import duty on Dapsone is about 27.73% of the import value under tariff item 2930 (estimate), including basic customs duty, the social welfare surcharge and IGST. Check the latest notifications before you import.
Is there anti-dumping duty on Dapsone?
No anti-dumping duty on Dapsone was found in the Customs (ADD) notifications in force.
What is the HS code (tariff item) of Dapsone in India?
Dapsone falls under tariff item 2930 (estimate) of the Customs Tariff of India.
Is Dapsone restricted or licensed in India?
Prescription drug: drug licence needed. 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 Dapsone from India need a licence?
No export licence needed. Not on the SCOMET export-control list or the precursor export list.
Is Dapsone hazardous?
Hazardous: take normal precautions. Irritates skin, eyes or breathing. Can cause long-term health damage. Harmful to fish and water life.
Is Dapsone 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.