Metamizole Sodium API from Japan
Metamizole sodium (dipyrone) contains pyrazole ring as analgesic/antipyretic active ingredient. Classifies under HTS 2933.19.4500 as pyrazole drug despite sodium salt form per Chapter note 5(C). Used globally for pain relief.
Duty Rate — Japan → United States
3.7%
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
• Note US import restrictions; provide safety data despite FDA non-approval status
• CoA must confirm sodium 1-phenyl-2,3-dimethyl-5-pyrazolone identity and sulfonate purity
• Salt form stays with parent pyrazole per note 5(C)(1); avoid separate inorganic classification