Dinonylnaphthalenesulfonic acidCAS 25322-17-2 · import duty, licences and trade rules in India

C28H44O3S · also called Catalyst 500, Taycacure AC 901, Nacure 141U, 2,3-Dinonyl-1-naphthalenesulfonic acid
No ban or licence needed. Normal trade rules apply; handle as its safety advice says.
Import dutyOKAbout 24.49%HS 2904 10 (subheading)Rules in IndiaOKNo special Indian ban or licence foundExportOKNo export licence neededSafetyNO DATANo hazard classification found

For trade in India: No ban or licence needed. Normal trade rules apply; handle as its safety advice says. Import duty is about 24.49% (tariff item 2904 10 (subheading)).

Checked 2026-11-12 against official Indian and international lists. Sources are given under each answer.

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Every answer, with its source

Rules in IndiaOK

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.
Source: CIB&RC pesticide lists · CDSCO new drug approvals · NDPS RCS Order 2013

Exporting from IndiaOK

No export licence needed
  • Not on the SCOMET export-control list or the precursor export list.
  • The buyer’s country may still have its own import rules.
Source: DGFT SCOMET list · NDPS RCS Order 2013

Global treaties & export marketsOK

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.
  • Active on the US TSCA Inventory, so it can be imported into the US without a new-chemical notice.
Source: Stockholm Convention, all listed POPs · Rotterdam Convention Annex III · Montreal Protocol annexes (ozone layer, Kigali HFCs) · US EPA TSCA Inventory · ECHA REACH lists, as published in PubChem

Import dutyOK

About 24.49% of the import value
  • About ₹24,490 duty on every ₹1,00,000 of import value (CIF).
  • The EU customs inventory (ECICS) classifies it under CN 2904 10 00, so its HS subheading is 2904 10.
  • India splits subheading 2904 10 into 4 lines: 2904 10 10 (Derivatives containing only sulpho groups, their salts and ethyl esters › Benzen); 2904 10 20 (Derivatives containing only sulpho groups, their salts and ethyl esters › 1,5 Na); 2904 10 30 (Derivatives containing only sulpho groups, their salts and ethyl esters › Napthe); 2904 10 90 (Derivatives containing only sulpho groups, their salts and ethyl esters › Other).
  • Basic customs duty 5% on every one of them; with social welfare surcharge and IGST 18% that makes about 24.49%.
  • Lines that name a chemical are for that chemical; one that no line names goes under "Other" (2904 10 90).
  • Confirm the exact 8-digit line with your customs broker before you import.
Source: Customs Tariff of India, CBIC · Notification 45/2025-Customs · Notification 02/2026-Customs (Budget 2026) · Finance Act 2026, Fifth Schedule (tariff rates from 1 May 2026) · Notification 9/2025-Integrated Tax (Rate) · EU customs inventory of chemicals (ECICS), European Commission

SafetyNO DATA

No hazard classification found
  • No classification does not mean it is safe.
  • Always read the supplier’s safety data sheet (SDS) before handling.
Source: PubChem GHS classification

Price and suppliersNO DATA

Not on RasayanXchange yet
  • Post a requirement and we will find suppliers for you.
Source: RasayanXchange market data

Key facts

CAS number25322-17-2
FormulaC28H44O3S
Also calledCatalyst 500, Taycacure AC 901, Nacure 141U, 2,3-Dinonyl-1-naphthalenesulfonic acid
Tariff item (HS)2904 10 (subheading)
Total import dutyabout 24.49%
Anti-dumping duty (most producers)None found
SCOMET (export control)Not listed
NDPS / precursorNot listed

Questions about Dinonylnaphthalenesulfonic acid

What is the import duty on Dinonylnaphthalenesulfonic acid in India?

The total import duty on Dinonylnaphthalenesulfonic acid is about 24.49% of the import value under tariff item 2904 10 (subheading), including basic customs duty, the social welfare surcharge and IGST. Check the latest notifications before you import.

Is there anti-dumping duty on Dinonylnaphthalenesulfonic acid?

No anti-dumping duty on Dinonylnaphthalenesulfonic acid was found in the Customs (ADD) notifications in force.

What is the HS code (tariff item) of Dinonylnaphthalenesulfonic acid in India?

Dinonylnaphthalenesulfonic acid falls under HS subheading 2904 10, 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 Dinonylnaphthalenesulfonic 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 Dinonylnaphthalenesulfonic acid from India need a licence?

No export licence needed. Not on the SCOMET export-control list or the precursor export list.

Is Dinonylnaphthalenesulfonic acid 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 Dinonylnaphthalenesulfonic 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). 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.

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Guidance from official lists, not legal advice. Rules change; confirm with DGFT, customs or the regulator before you trade.