New

Ask Wove anything about tariffs.

Try Tariff Assistant

o-Aminobenzenesulfonic Acid (Orthanilic Acid) from Japan

Orthanilic acid is a chemically defined aromatic monoamine derivative with both amino and sulfonic acid groups on a benzene ring, explicitly listed under HTS 2921.42.18.00. It serves as a key intermediate in dye synthesis and pharmaceutical production. This classification applies due to its specific structure as an aniline derivative and salt thereof.

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

• Provide Certificate of Analysis (CoA) confirming chemical purity and identity to avoid misclassification

• Ensure SDS includes GHS labeling for hazardous transport; verify DOT/UN proper shipping name

• Declare exact CAS number (582-35-4) on entry to match HTS description precisely