Hexamethylenetetramine (CAS 100-97-0): import duty, licences and trade rules in India

Hexamethylenetetramine is a polycyclic cage that is adamantane in which the carbon atoms at positions 1, 3, 5 and 7 are replaced by nitrogen atoms. For trade in India: OK to trade, but watch: food residue limits. Import duty is about 27.73% (tariff item 2921 29 10). DGFT policy: import Free, export Free.

OK to trade, but watch: food residue limits.

Checked 2026-10-31 against official Indian and international lists. Sources are given under each answer.

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Key facts

CAS number	100-97-0
Formula	C6H12N4
Also called	Hexamethylenetetramine, Hexamine, Urotropine, Urotropin
Tariff item (HS)	2921 29 10
Total import duty	about 27.73%
Anti-dumping duty (most producers)	None found
DGFT import policy	Free
DGFT export policy	Free
SCOMET (export control)	Not listed
NDPS / precursor	Not listed

Every answer, with its source

Rules in IndiaOK

Allowed, under the normal registration

A medicine containing it was approved by CDSCO in 2024: Methenamine Hippurate bulk drug &Methenamine Hippurate Tablets USP 1gm.
Making or selling medicines needs a drug licence.
Import policy (DGFT ITC(HS)) for tariff item 2921 29 10: 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.
Not approved as a pesticide in the EU: food sent there must carry almost none of it.
The buyer’s country may still have its own import rules.
Export policy (DGFT ITC(HS)) for tariff item 2921 29 10: Free.

Source: DGFT SCOMET list · NDPS RCS Order 2013 · DGFT ITC(HS) 2022, Schedule 2 Export Policy

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).
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 612-101-00-2): Flam. Sol. 2, Skin Sens. 1. Suppliers in the EU must label it this way.

Source: Stockholm Convention, all listed POPs · Rotterdam Convention Annex III · Montreal Protocol annexes (ozone layer, Kigali HFCs) · EU CLP Regulation Annex VI (harmonised classification) · US EPA TSCA Inventory · ECHA REACH lists, as published in PubChem

Import dutyOK

About 27.73% of the import value

About ₹27,730 duty on every ₹1,00,000 of import value (CIF).
Made up of basic customs duty 7.5%, social welfare surcharge 0.75% and IGST 18%. IGST can usually be claimed back as input tax credit.
Tariff item 2921 29 10: Hexamethylene tetramine (hexamine) not put up as fuel or medicament.

Source: Customs Tariff of India, CBIC · Notification 45/2025-Customs · Notification 9/2025-Integrated Tax (Rate)

SafetyCHECK

Dangerous: handle with proper protection

Catches fire easily
Irritates skin, eyes or breathing
Flammable solid
May cause an allergic skin reaction
Always read the supplier’s safety data sheet (SDS) before handling.

Source: PubChem GHS classification

Storage, transport & PESOOK

Dangerous goods for transport

Ships as UN 1328 (Flammable Solid): dangerous-goods rules apply by road, sea (IMDG) and air (IATA), with labels, packaging and a transport document.

Source: UN numbers (CAMEO Chemicals, via PubChem)

Food residue limitsCHECK

Default food limit applies

India (FSSAI) has no specific limit, so the default 0.01 mg/kg applies to food.
EU: not approved; most EU food limits are at the detection limit.

Source: FSSAI Contaminants Regulations · EU Pesticides Database

Price and suppliersNO DATA

Not on RasayanXchange yet

Post a requirement and we will find suppliers for you.

Source: RasayanXchange market data

Questions about Hexamethylenetetramine

What is the import duty on Hexamethylenetetramine in India?

The total import duty on Hexamethylenetetramine is about 27.73% of the import value under tariff item 2921 29 10, including basic customs duty, the social welfare surcharge and IGST. Check the latest notifications before you import.

Is there anti-dumping duty on Hexamethylenetetramine?

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

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

Hexamethylenetetramine falls under tariff item 2921 29 10 of the Customs Tariff of India.

Is Hexamethylenetetramine restricted or licensed in India?

Allowed, under the normal registration. A medicine containing it was approved by CDSCO in 2024: Methenamine Hippurate bulk drug &Methenamine Hippurate Tablets USP 1gm. Making or selling medicines needs a drug licence.

Can Hexamethylenetetramine be imported freely into India?

Under DGFT's ITC(HS) import policy, Hexamethylenetetramine is Free.

Does exporting Hexamethylenetetramine from India need a licence?

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

Is Hexamethylenetetramine hazardous?

Dangerous: handle with proper protection. Catches fire easily. Irritates skin, eyes or breathing. Flammable solid.

Is Hexamethylenetetramine 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.