1,5-Dihydroxyanthraquinone (Anthrarufin) from Japan
Anthrarufin (1,5-dihydroxyanthraquinone) combines quinone functionality with phenolic hydroxy groups. Classified in HTS 2914.61.00.00 as 'quinones...with other oxygen function.' Used in dye synthesis and as pharmaceutical intermediates.
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
• Specify exact hydroxy positions (1,5-) in technical documentation for proper identification
• Include melting point (280-282°C) and purity specs matching commercial anthrarufin
• Avoid classification confusion with anthraquinone dyes by excluding colorant formulations