2904.10.15.00/1,3,6-1,3,7-NTS Acid for Acid Dyes/Canada

1,3,6-1,3,7-NTS Acid for Acid Dyes from Canada

Mixture of naphthalenetrisulfonic acid isomers (1,3,6 & 1,3,7) used as diazo component in acid dye synthesis. Precisely matches HTS 2904.10.15.00 for mixtures of these specific sulfonated derivatives containing only sulfo groups.

Duty Rate — Canada → United States

15.5%

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
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Import Tips

• Document intended industrial use to distinguish from Chapter 32 exclusions for coloring matters

• Test for heavy metal impurities (<10 ppm) required for dye intermediate import clearance

• Use DOT-approved corrosive packaging; common violation leads to CBP holds

1,3,6-1,3,7-NTS Acid for Acid Dyes from Canada — Import Duty Rate | HTS 2904.10.15.00