Thioxanthene-9-one (Thioxanthone) from Japan
Thioxanthene-9-one, commonly called thioxanthone, is a tricyclic aromatic heterocyclic ketone with a central sulfur atom. It is specifically enumerated under HTS 2934.99.05.00 as an 'aromatic heterocyclic compound.' Widely used as a photoinitiator in UV-curable inks, coatings, and adhesives.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Include UV absorption spectrum data confirming photoinitiator properties while maintaining chemical classification
• Light-protected packaging essential to prevent premature activation during transit
• Specify 'technical grade >98% purity' on invoices to distinguish from formulated ink preparations