💾 Data Updated: 2025 HTS Revision 30 • Last updated: November 24, 2025

9902.08.23 - Acid Blue 171 (Sodium [6-(amino-κN)-5-[2-[2-(hydroxy-κO)-4- nitrophenyl]diazenyl-κN1]-N-methyl-2-naphthalenesul- fonamidato(2-)][6-(amino-κN)-5-[2-[2-(hydroxy-κO)-4-nitro- phenyl]diazenyl-κN1]-2-naphthalenesulfonato(3-)]-Cobaltate(2-) (1:2) (1:2)) (CAS No. 75314-27-1) (provided for in subheading 3204.12.45)

Details

FieldValue
Unit of QuantityN/A
General Rate of DutyFree
Special Rate of DutyNo change
Column 2 Rate of DutyNo change
Quota QuantityN/A
Additional DutiesN/A

Overview

This HTS category, 9902.08.23, specifically classifies Acid Blue 171, identified by its CAS number 75314-27-1. This chemical compound is a complex cobaltate salt used as a dye. Its detailed chemical nomenclature highlights its precise molecular structure, distinguishing it from other dyes or chemical substances that may share similar color properties but differ in chemical composition or application.

As a temporary classification under Chapter 99, this entry signifies a specific, potentially time-limited, trade provision. Unlike the broad product categories found in the earlier chapters of the HTS (e.g., live animals in Chapter 01), this node represents a highly specialized chemical product with a designated primary classification of 3204.12.45. The purpose of such specific temporary provisions is often to manage imports under trade agreements or specific economic policies.

Since this is a leaf node, there are no further subcategories. The classification is complete at this level, indicating that any import of Acid Blue 171 under this specific provision will be categorized precisely as 9902.08.23, subject to the terms and conditions associated with Chapter 99 of the HTS. The focus remains on the unique chemical identity and the specific regulatory context of this dye.

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