2916.19.50.00/Crotonic Acid/Japan

Crotonic Acid from Japan

Crotonic acid (2-butenoic acid, CH3CH=CHCOOH) is an unsaturated acyclic monocarboxylic acid with a trans double bond. Classified under HTS 2916.19.50.00 as 'other' unsaturated acyclic acids. Used in resins, plastics, and pharmaceuticals.

Duty Rate — Japan → United States

3.7%

Rate breakdown

9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter

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Import Tips

• Submit certificate of analysis verifying trans-crotonic acid structure (CAS 3724-65-0 or 97-65-4) to distinguish from isomers

• Declare if stabilized with hydroquinone; note Chapter 29(f) allows stabilizers without reclassification

• Avoid bulk aqueous shipments over 50% concentration to prevent Chapter 29 note (d) exclusion issues