Naphthol AS Photoinitiator from Canada
This is 1-Naphthalenesulfonic acid, 6-diazo-5,6-dihydro-5-oxo, ester with phenyl(2,3,4-trihydroxyphenyl)methanone, a diazo compound used as a photoinitiator in printing inks and UV-curable coatings. It falls under HTS 2927.00.18.00 as one of the specifically enumerated diazo compounds in the diazo-, azo- or azoxy-compounds heading of Chapter 29.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Verify exact chemical identity matches the enumerated compound via Certificate of Analysis to ensure proper classification under this specific subheading
• Provide detailed chemical structure and CAS number documentation; these compounds require EPA TSCA pre-manufacture notification if not on inventory