2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-3-(2-(4-nitrophenyl)diazenyl)-6-(2-phenyldiazenyl)-, sodium salt (1:?)CAS 83006-55-7 · import duty, licences and trade rules in India

C22H14N6Na2O9S2 · also called RefChem:446195, 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-3-(2-(4-nitrophenyl)diazenyl)-6-(2-phenyldiazenyl)-, sodium salt (1:?), ACID BLACK 1, Naphthol Blue Black
OK to trade, but watch: global treaties & export markets; import duty.
Import dutyCHECKAbout 30.98%HS 3204 12 31Rules in IndiaOKNo special Indian ban or licence foundExportOKNo export licence neededSafetyOKNot classified as hazardous

Amido Black 10B is an organic sodium salt resulting from the formal condensation of Amido Black 10B (acid form) with two equivalents of sodium hydroxide. For trade in India: OK to trade, but watch: global treaties & export markets; import duty. Import duty is about 30.98% (tariff item 3204 12 31). DGFT policy: import Free, export Free.

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

Run the live check Open in Compound Workspace Search RasayanXchange

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.
  • Import policy (DGFT ITC(HS)) for tariff item 3204 12 31: Free, so no import licence is needed under trade policy.
Source: CIB&RC pesticide lists · CDSCO new drug approvals · NDPS RCS Order 2013 · DGFT ITC(HS) 2022, Schedule 1 Import Policy

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.
  • Export policy (DGFT ITC(HS)) for tariff item 3204 12 31: Free.
Source: DGFT SCOMET list · NDPS RCS Order 2013 · DGFT ITC(HS) 2022, Schedule 2 Export Policy

Global treaties & export marketsCHECK

US: new chemical under TSCA
  • 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: EPA needs a premanufacture notice before it can be imported, unless it is a pesticide, drug or food additive, which TSCA does not cover.
  • Listed on the Australian Inventory of Industrial Chemicals (AICIS), so it can be introduced into Australia as an existing industrial chemical.
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 dutyCHECK

About 30.98% of the import value
  • About ₹30,980 duty on every ₹1,00,000 of import value (CIF).
  • Made up of basic customs duty 10%, social welfare surcharge 1% and IGST 18%. IGST can usually be claimed back as input tax credit.
  • Tariff item 3204 12 31: Acid black 2 (nigrosine).
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)

SafetyOK

Not classified as hazardous
  • Always read the supplier’s safety data sheet (SDS) before handling.
Source: PubChem GHS classification

Price and suppliersNO DATA

Not on RasayanXchange yet
  • India exported 632 tonnes in 2025-26 (down 7% on 2024-25) under tariff item 32041231, “Acid black 2(nigrosine)”.
  • Post a requirement and we will find suppliers for you.
Source: RasayanXchange market data · Export Import Data Bank, Department of Commerce (DGCI&S)

Key facts

CAS number83006-55-7
FormulaC22H14N6Na2O9S2
Also calledRefChem:446195, 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-3-(2-(4-nitrophenyl)diazenyl)-6-(2-phenyldiazenyl)-, sodium salt (1:?), ACID BLACK 1, Naphthol Blue Black
Tariff item (HS)3204 12 31
Total import dutyabout 30.98%
Anti-dumping duty (most producers)None found
DGFT import policyFree
DGFT export policyFree
SCOMET (export control)Not listed
NDPS / precursorNot listed

Questions about 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-3-(2-(4-nitrophenyl)diazenyl)-6-(2-phenyldiazenyl)-, sodium salt (1:?)

What is the import duty on 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-3-(2-(4-nitrophenyl)diazenyl)-6-(2-phenyldiazenyl)-, sodium salt (1:?) in India?

The total import duty on 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-3-(2-(4-nitrophenyl)diazenyl)-6-(2-phenyldiazenyl)-, sodium salt (1:?) is about 30.98% of the import value under tariff item 3204 12 31, including basic customs duty, the social welfare surcharge and IGST. Check the latest notifications before you import.

Is there anti-dumping duty on 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-3-(2-(4-nitrophenyl)diazenyl)-6-(2-phenyldiazenyl)-, sodium salt (1:?)?

No anti-dumping duty on 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-3-(2-(4-nitrophenyl)diazenyl)-6-(2-phenyldiazenyl)-, sodium salt (1:?) was found in the Customs (ADD) notifications in force.

What is the HS code (tariff item) of 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-3-(2-(4-nitrophenyl)diazenyl)-6-(2-phenyldiazenyl)-, sodium salt (1:?) in India?

2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-3-(2-(4-nitrophenyl)diazenyl)-6-(2-phenyldiazenyl)-, sodium salt (1:?) falls under tariff item 3204 12 31 of the Customs Tariff of India.

Is 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-3-(2-(4-nitrophenyl)diazenyl)-6-(2-phenyldiazenyl)-, sodium salt (1:?) 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.

Can 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-3-(2-(4-nitrophenyl)diazenyl)-6-(2-phenyldiazenyl)-, sodium salt (1:?) be imported freely into India?

Under DGFT's ITC(HS) import policy, 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-3-(2-(4-nitrophenyl)diazenyl)-6-(2-phenyldiazenyl)-, sodium salt (1:?) is Free.

Does exporting 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-3-(2-(4-nitrophenyl)diazenyl)-6-(2-phenyldiazenyl)-, sodium salt (1:?) from India need a licence?

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

Is 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-3-(2-(4-nitrophenyl)diazenyl)-6-(2-phenyldiazenyl)-, sodium salt (1:?) hazardous?

Not classified as hazardous. Always read the supplier’s safety data sheet (SDS) before handling.

Is 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-3-(2-(4-nitrophenyl)diazenyl)-6-(2-phenyldiazenyl)-, sodium salt (1:?) regulated under global treaties or in the EU and US?

US: new chemical under TSCA. 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.