Isopropphenazone from Japan
Isopropphenazone, an isopropyl-substituted phenazone derivative, serves as a pharmaceutical intermediate. Falls under HTS 2933.11.00.00 due to its explicit inclusion as a phenazone derivative with pyrazole ring. Used in synthesis of modern NSAIDs.
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
• Provide structure elucidation data (IR, UV spectra); declare as 'not for direct human consumption'; comply with TSCA import notification for US synthesis