Disodium 1,8-Dihydroxynaphthalene-3,6-disulfonate (H Salt) from China
The disodium salt form of 1,8-Dihydroxynaphthalene-3,6-disulfonic acid, commonly called H Salt, used in water-soluble dye coupling. HTS 2908.99.0900 explicitly includes this salt as a halogenated/sulfonated phenol derivative containing only sulfo groups.
Duty Rate — China → United States
40.5%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Include salt content verification in COA; sodium content must match theoretical 14.8% for disodium form
• Label as UN 3265 Corrosive Liquid, basic, inorganic, n.o.s. for ocean transport