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2921.45.90.90/1-(Phenylamino)naphthalin-8-sulfonic Acid (Naphthol AS)/Mexico

1-(Phenylamino)naphthalin-8-sulfonic Acid (Naphthol AS) from Mexico

Naphthol AS is a substituted naphthylamine derivative used as a dye coupler in pigment printing. It falls under HTS 2921.45.90.90 as an 'other' derivative featuring the naphthylamine core with phenylamino substitution. The classification adheres to Chapter 29's amine-function provisions.

Duty Rate — Mexico → United States

16.5%

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

• Provide synthesis route documentation showing naphthylamine origin

• Test for free naphthylamine content (<20ppm) to meet safety import standards

• Label with GHS hazard pictograms; sensitizing properties require special handling manifests

1-(Phenylamino)naphthalin-8-sulfonic Acid (Naphthol AS) from Mexico — Import Duty Rate | HTS 2921.45.90.90