2921.45.25.00 - Mixtures of 5- and 8-amino-2-naphthalene- sulfonic acid; 2-Naphthylamine-6-sulfonic acid; ando-Naphthionic acid (1-amino- 2-naphthalene- sulfonic acid) 🖩
Details
| Field | Value |
|---|---|
| Unit of Quantity | kg |
| General Rate of Duty (Column 1 - General) | Free |
| Special Rate of Duty (Column 1 - Special) | N/A |
| Column 2 Rate of Duty | 15.4¢/kg + 60% |
| Quota Quantity | N/A |
| Additional Duties | N/A |
Overview
This HTS category, 2921.45.25.00, specifically covers mixtures of three distinct amino-naphthalene sulfonic acid compounds: 5-amino-2-naphthalene sulfonic acid, 8-amino-2-naphthalene sulfonic acid, and *o*-naphthionic acid (also known as 1-amino-2-naphthalene sulfonic acid). These are organic chemical compounds characterized by the presence of both an amino group (-NH2) and a sulfonic acid group (-SO3H) attached to a naphthalene ring structure. Their classification here is based on their specific chemical identity and their common use as intermediates in the dye and pigment industries.
This category is distinguished from its siblings by the precise combination of amino-naphthalene sulfonic acids it encompasses. While sibling categories 2921.45.10.00 and 2921.45.20.00 also list various amino-naphthalene sulfonic acids and their derivatives, this entry is specifically for the *mixture* of the three named compounds. The "Other" designation at the same level implies that any other specific mixtures or individual compounds not explicitly listed in the preceding subheadings would fall under a broader category.
As this is a leaf node within the HTS, there are no further subdivisions (subcategories) under 2921.45.25.00. Therefore, classification under this code relies on the accurate identification of the listed mixtures. The key classification criterion is the presence of the specified combination of 5- and 8-amino-2-naphthalene sulfonic acid and *o*-naphthionic acid. The parent context of "Aromatic monoamines and their derivatives; salts thereof" reinforces the chemical nature of the goods falling within this specific HTS classification.