2-Naphthol-3,6-disulfonic acid disodium salt from Japan
The disodium salt of 2-naphthol-3,6-disulfonic acid (R-acid salt), specifically provided for in HTS 2908.99.0300. This sulfonated naphthol derivative contains only sulfo groups and their salts, qualifying under the chapter's provisions for chemically defined organic compounds. Used in manufacturing acid dyes.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Specify 'disodium salt' and provide sodium analysis (typically 2 Na per molecule)
• Monitor for hydration state; dihydrate forms common and affect weight declarations
• Include downstream dye manufacturing end-use statement to support intermediate classification