Pyrazole Pharmaceutical Intermediate from Japan
Pyrazole consists of a five-membered ring with two adjacent nitrogen atoms, classified as an aromatic nitrogen heterocycle under HTS 2933.99.82. Used extensively as a scaffold in drug discovery for anti-inflammatory and antiviral agents.
Duty Rate — Japan → United States
6.5%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Drug Master File documentation essential; CAS registry verification; ensure not classified as finished API