2-Chloro-4-toluidine-5-sulphonic acid (sodium salt)

2-Chloro-4-toluidine-5-sulphonic acid, sodium salt (aromatic amine)

CIB&RC CLEARANCE · NDPS CLEARANCE

HSN 2921 43 70 (2-Chloro-4-toluidine-5-sulphonic acid, sodium salt) is subject to registration and import permit requirements from the Central Insecticides Board and Registration Committee (CIB&RC) under the Insecticides Act, 1968, where the substance figures in the schedule to that Act. Narcotic Drugs and Psychotropic Substances (NDPS) conditions under Chapter VII-A of the NDPS Rules, 1985 and the Directorate General of Foreign Trade (DGFT) ITC (HS) policy conditions for Chapter 29 apply as additional clearance requirements, alongside mandatory Chapter 29 qualifiers under CBIC Circular 23/2023-CUS.

What this is

HSN code

2921 43 70

Chapter

29 · Organic chemicals

Primary regulator

CIB&RC · Insecticides Act, 1968 and Insecticides Rules, 1971

Customs documentation

Registration and import permit from CIB&RC
Import certificate from NDPS authority
Chapter 29 qualifiers from CBIC

Applicable Partner Government Agencies

CIB&RCCIB&RC·Central Insecticides Board and Registration Committee

NDPSNDPS·Narcotics Control Bureau

Procedural directions for customs clearance are issued by: Directorate General of Foreign Trade, Central Board of Indirect Taxes and Customs.

Compliance steps

1
Where the substance falls within the schedule to the Insecticides Act, 1968, obtain registration and an import permit from the secretariat of the Central Insecticides Board and Registration Committee before filing the bill of entry. Import of insecticides is permitted only at ports specified under Rule 45 of the Insecticides Rules, 1971; diversion to an unspecified port renders the consignment liable to seizure.
Insecticides Act, 1968 · Rule 45 of the Insecticides Rules, 1971 · ITC (HS) policy
2
Where the substance is classified as an NDPS substance, obtain an import certificate under Rule 53 of the NDPS Rules, 1985 for imports under the special provisions for medical and scientific purposes (Chapter VII-A); imports outside that category are governed by Appendix I to the ITC (HS) Schedule under ITC (HS) policy condition 2 to Chapter 29.
Rule 53 of the NDPS Rules, 1985 · ITC (HS) policy condition 2 to Chapter 29
3
File the bill of entry with mandatory additional qualifiers in the import declaration as required for commodities under Chapter 29, with effect from 15 October 2023. Where import of specified hazardous substances exceeds specified quantities, take out an insurance policy under the Public Liability Insurance Act, 1991 as per S.O. 227(E) dated 24-03-1992.
CBIC Circular 23/2023-CUS dated 30-09-2023, para 4.1 and 4.2 · S.O. 227(E) dated 24-03-1992

A word of counsel

The most common error on this tariff line is importing on the basis of a DGFT ITC (HS) clearance alone, without verifying whether the specific batch composition brings the substance within the schedule to the Insecticides Act, 1968 — which triggers an independent CIB&RC registration and port restriction under Rule 45 of the Insecticides Rules, 1971. A consignment cleared through an unspecified port or without a current CIB&RC permit is liable to detention and confiscation even where the NDPS and CBIC Chapter 29 qualifier requirements are otherwise met.

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Frequently asked

Does HSN 2921 43 70 require BIS certification?

No. No BIS Quality Control Order covers this aromatic amine compound. Import is governed by the Central Insecticides Board and Registration Committee under the Insecticides Act, 1968 (where the substance falls in the insecticide schedule), with NDPS Rules, 1985 conditions and DGFT ITC (HS) policy overlays for Chapter 29.

At which ports may insecticides under this CTI be imported?

Import is permitted only at ports specified under Rule 45 of the Insecticides Rules, 1971; the list of notified ports should be confirmed with the CIB&RC secretariat before placing the purchase order, as routing through an unspecified port constitutes a violation of the Insecticides Act, 1968.

What happens if the substance also qualifies as an NDPS substance under this HSN?

An import certificate under Rule 53 of the NDPS Rules, 1985 must be obtained from the Central Bureau of Narcotics (cbn.nic.in) before import for medical or scientific purposes; imports outside this special provision are subject to Appendix I of the ITC (HS) Schedule, which may prohibit the import entirely.

Last verified against gazette notifications: 2026-05-16. Source: CIB&RC / NDPS / DGFT / CBIC / Indian Customs CUSDATA.