Homogentisic Acid from Canada
Homogentisic acid (2,5-dihydroxyphenylacetic acid) is a phenolic acid metabolite used in biochemical research. While technically phenylacetic derivative, classified under HTS 2918.29.7500 for dominant phenolic carboxylic function. Chemically defined structure fits Chapter 29 criteria.
Duty Rate — Canada → United States
6.5%
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
Import Tips
• Refrigerated shipping (<8°C) mandatory; provide metabolic pathway documentation; IATA dangerous goods exemption for small quantities