1H-Pyrazole-3-carboxylic Acid from Japan
1H-Pyrazole-3-carboxylic acid contains both unfused pyrazole ring and carboxylic acid function, classified under HTS 2933.19.90.00 with heterocyclic heading taking precedence. Used in pharmaceutical synthesis and agrochemical production.
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
• pH-sensitive - specify neutral packaging and include corrosion inhibitor if required
• Carboxylic acid derivatives need decarboxylation stability data for classification
• Confirm free acid vs. salt form - sodium salt may affect duty treatment