Laboratory Research Xanthen-9-one from Canada
Purified xanthen-9-one supplied for research labs, featuring oxygen-only heterocyclic structure, explicitly named in HTS 2932.99.39.00. Used in photochemistry and as a synthetic building block, it qualifies as a separate organic compound under Chapter 29.
Duty Rate — Canada → United States
15.8%
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
• Include end-use statement for research to avoid scrutiny as potential dye intermediate under Chapter 32 exclusions
• Package in allowed solvents only (note e); excess may trigger reclassification as preparations