1,4-Naphthoquinone from Japan
1,4-Naphthoquinone is a yellow crystalline quinone compound with the formula C10H6O2, featuring two carbonyl groups conjugated in a benzene ring fused to a cyclohexene ring. It falls under HTS 2914.69.90.00 as an 'other' quinone with oxygen function, distinct from anthraquinone or coenzyme Q10. Used in organic synthesis and dye production.
Duty Rate — Japan → United States
22%
Rate breakdown
9903.04.629.5%Patented pharmaceutical articles that are the product of Japan, of a European Union member country, of South Korea, of Switzerland, or of Liechtenstein as provided for in subdivisions (c) and (f) of U.S. note 40 to this subchapter
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 identity and purity as per Chapter 29 notes for separate chemically defined compounds
• Ensure SDS includes GHS hazard classification for quinones (toxic, irritant) to meet EPA and OSHA import requirements
• Avoid misclassification as dyes (Chapter 32) by documenting non-coloring primary use