Acid blue 112 (coomasie ultra sky SE)

Acid blue 112 synthetic acid dye (Coomassie Ultra Sky SE)

CBIC CLEARANCE

HSN 3204 12 52 (Acid blue 112 / Coomassie Ultra Sky SE) is subject to the Central Board of Indirect Taxes and Customs (CBIC) mandatory additional-qualifier declaration requirement under CBIC Circular 23/2023-Cus dated 30-09-2023, operative from 15 October 2023. Importers must furnish the Chapter 32 qualifiers stipulated in Paragraphs 4.1 and 4.2 of that Circular at the bill-of-entry stage.

What this is

HSN code

3204 12 52

Chapter

32 · Tanning or dyeing extracts; tannins and their derivatives; dyes, pigments, paints and varnishes

Primary regulator

CBIC · Mandatory additional qualifiers, CBIC Circular 23/2023-Cus dated 30-09-2023

Customs documentation

Chapter 32 qualifiers from CBIC
Import declaration from CBIC

Compliance steps

1
Ensure the import declaration includes all mandatory additional qualifiers for Chapter 32 commodities as stipulated in Paragraphs 4.1 and 4.2 of CBIC Circular 23/2023-Cus. These qualifiers are mandatory with effect from 15 October 2023 and must be furnished at the bill-of-entry stage without exception.
CBIC Circular 23/2023-Cus dated 30-09-2023, Paragraphs 4.1 and 4.2
2
Verify that the bill of entry correctly identifies the commodity under CTH 3204 12 52 and that the Chapter 32 qualifier fields are populated in the customs declaration system before filing. Incomplete qualifier declarations will result in the bill of entry being held and may trigger a detailed examination.
CBIC Circular 23/2023-Cus dated 30-09-2023

A word of counsel

The most common error on this tariff line is filing the bill of entry with standard product-description fields and omitting the mandatory Chapter 32 qualifiers required under CBIC Circular 23/2023-Cus. Because the qualifier mandate covers all commodities under Chapters 28, 29, 32, 39 and CTH 3808, the omission is systemic for importers who treat synthetic dyes as routine chemical imports — the result is a held bill of entry, port detention, and accumulating demurrage until the corrected declaration is accepted.

Need a regulatory steer on this product?

Speak to a regulatory counsel about your specific HSN, IS, and supplier situation.

Speak to an Expert

Frequently asked

Does HSN 3204 12 52 require BIS certification?

No, acid dyes including Acid blue 112 are not covered by any BIS Quality Control Order. The governing compliance requirement for this tariff line is the CBIC mandatory additional-qualifier declaration under CBIC Circular 23/2023-Cus dated 30-09-2023.

What are the mandatory additional qualifiers required at the bill of entry for this tariff line?

The specific qualifier fields are set out in Paragraphs 4.1 and 4.2 of CBIC Circular 23/2023-Cus dated 30-09-2023, which apply to all commodities under Chapter 32 with effect from 15 October 2023.

Does the Chapter 32 qualifier requirement apply to all acid dye imports or only to specific sub-headings?

The requirement under CBIC Circular 23/2023-Cus applies to all commodities under Chapter 32 broadly, including CTH 3204 12 52; there is no sub-heading carve-out for acid dyes within the Circular's scope.

Last verified against gazette notifications: 2026-05-16. Source: CBIC / Indian Customs CUSDATA.