Other

Other heterocyclic compounds, nucleic acids and salts

CIB&RC CLEARANCE · MOHFW CLEARANCE · +1 OTHER PGAS

HSN 2934 99 90 (Other heterocyclic compounds) carries concurrent regulatory obligations under the Central Insecticides Board and Registration Committee (CIB&RC) for scheduled insecticides, the Ministry of Health and Family Welfare (MOHFW) for prohibited veterinary compounds, and the Narcotic Drugs and Psychotropic Substances (NDPS) regime for listed psychotropic substances. Import is broadly free under DGFT Notification 50/2025-26, subject to a Restricted-import condition on ATS-8 (CIF below US$ 111 per kg, operative until 30 September 2026) and Chapter 29 policy condition 08 operative until 30 November 2026. Mandatory Chapter 29 qualifiers under CBIC Circular 23/2023-Cus apply at the bill-of-entry stage.

What this is

HSN code

2934 99 90

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
Chapter 29 qualifiers from CBIC

Applicable Partner Government Agencies

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

MOHFWMOHFW·Ministry of Health and Family Welfare

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
If the substance imported falls within the schedule to the Insecticides Act, 1968 — including ryanodine (ryania), dazomet, difenoconazole, dimethomorph, furilazole, propiconazole, tebuthiuron, tiadinil, fluoxastrobin, or dimethenamid-p — obtain registration and an import permit from the Secretariat of CIB&RC before filing the bill of entry. Note that import of insecticides is permitted only through ports specified under Rule 45 of the Insecticides Rules, 1971.
Insecticides Act, 1968 · Rule 45, Insecticides Rules, 1971
2
If the substance is classified as an NDPS substance — including para-methyl-4-ethylaminorex, 4,4'-DMAR, MDPV, 4-methylaminorex, etizolam, mesocarb, methiopropamine, or tenocyclidine — obtain an NDPS import certificate for medical or scientific use under Chapter VII-A of the NDPS Rules, 1985, or comply with ITC (HS) Appendix-I and Chapter 29 policy condition 02. Ensure ATS-8 consignments have a CIF value at or above US$ 111 per kg or hold a valid Restricted-import authorisation from DGFT, operative until 30 September 2026.
NDPS Rules, 1985, Chapter VII-A · DGFT Notification 50/2025-26 dated 18-12-2025 · ITC (HS) policy condition 02 and 08 of Chapter 29
3
Ensure the import declaration includes mandatory additional qualifiers for Chapter 29 commodities as stipulated in paragraphs 4.1 and 4.2 of CBIC Circular 23/2023-Cus, effective 15 October 2023. Do not import chloramphenicol, its formulations, nitrofurans, or their formulations for use in any food-producing animal rearing system — this is absolutely prohibited under S.O. 1158(E) dated 12 March 2025. Tridemorph is also completely banned under S.O. 3951(E) dated 8 August 2018.
CBIC Circular 23/2023-Cus dated 30-09-2023 · S.O. 1158(E) dated 12-03-2025 (MOHFW) · S.O. 3951(E) dated 08-08-2018

A word of counsel

The most persistent error on this tariff line is treating the CIB&RC, NDPS, and MOHFW obligations as mutually exclusive — assuming that a substance not scheduled under the Insecticides Act is therefore free of all controls. A single compound can simultaneously attract CIB&RC registration, NDPS import certification, and the MOHFW prohibition on veterinary use, each with independent legal consequences. The carve-out for remdesivir injection, remdesivir API, and beta-cyclodextrin (SBEbCD) is explicit in the CCR: those three products are exempt from NDPS, CIB&RC, and PLI Act obligations, but the CBIC Chapter 29 qualifier obligation under Circular 23/2023-Cus remains applicable to all commodities under this CTI.

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Frequently asked

Does HSN 2934 99 90 require BIS certification?

No, other heterocyclic compounds under this tariff line fall entirely outside the BIS Quality Control Order regime. Import obligations are governed by the Central Insecticides Board and Registration Committee under the Insecticides Act, 1968, the NDPS regime under the NDPS Rules, 1985, and MOHFW prohibitions under S.O. 1158(E) dated 12 March 2025, with DGFT policy and CBIC qualifier overlays.

Is the Restricted-import condition on ATS-8 permanent, and which ports are authorised for scheduled insecticide imports?

The ATS-8 Restricted-import condition (CIF below US$ 111 per kg) is operative until 30 September 2026 per DGFT Notification 50/2025-26; for scheduled insecticides, import is permitted only through ports specified under Rule 45 of the Insecticides Rules, 1971, and importers must confirm the current notified list with CIB&RC before shipment.

Are remdesivir and beta-cyclodextrin subject to CIB&RC registration and NDPS import certification under this CTI?

No. Remdesivir injection, remdesivir API, and beta-cyclodextrin (SBEbCD) are explicitly exempted from the NDPS, CIB&RC, and PLI Act obligations applicable to this CTI; however, the CBIC Circular 23/2023-Cus mandatory Chapter 29 qualifier requirement applies to all imports under this heading without exception.

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