Sulfasalazine (CAS 599-79-1): import duty, licences and trade rules in India
Sulfasalazine is an azobenzene consisting of diphenyldiazene having a carboxy substituent at the 4-position, a hydroxy substituent at the 3-position and a 2-pyridylaminosulphonyl substituent at the 4'-position. For trade in India: OK to trade, but watch: rules in India. Import duty is about 27.73% (tariff item 2935 (estimate)). Drug schedule: H.
Checked 2026-10-31 against official Indian and international lists. Sources are given under each answer.
Key facts
| CAS number | 599-79-1 |
|---|---|
| Formula | C18H14N4O5S |
| Also called | Salicylazosulfapyridine, Sulphasalazine, Azulfidine, Salazosulfapyridine |
| Tariff item (HS) | 2935 (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).
- No EU REACH registration found: an EU importer (or your only representative) must register it before importing a tonne or more a year. Medicines and pesticide actives follow their own EU rules.
- Not on the US TSCA Inventory, which does not cover medicines or pesticides; those are regulated by the FDA and EPA (FIFRA).
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: 2935, sulphonamides (sulphonamide group).
- All lines under heading 2935 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.
SafetyNO DATA
- No classification does not mean it is safe.
- 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 patentsOK
- Generic versions can be sold in the US.
- Indian patents are not checked.
Questions about Sulfasalazine
What is the import duty on Sulfasalazine in India?
The total import duty on Sulfasalazine is about 27.73% of the import value under tariff item 2935 (estimate), including basic customs duty, the social welfare surcharge and IGST. Check the latest notifications before you import.
Is there anti-dumping duty on Sulfasalazine?
No anti-dumping duty on Sulfasalazine was found in the Customs (ADD) notifications in force.
What is the HS code (tariff item) of Sulfasalazine in India?
Sulfasalazine falls under tariff item 2935 (estimate) of the Customs Tariff of India.
Is Sulfasalazine 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 Sulfasalazine from India need a licence?
No export licence needed. Not on the SCOMET export-control list or the precursor export list.
Is Sulfasalazine hazardous?
No hazard classification found. No classification does not mean it is safe. Always read the supplier’s safety data sheet (SDS) before handling.
Is Sulfasalazine 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). No EU REACH registration found: an EU importer (or your only representative) must register it before importing a tonne or more a year. Medicines and pesticide actives follow their own EU rules.
Related chemicals
Guidance from official lists, not legal advice. Rules change; confirm with DGFT, customs or the regulator before you trade.