2933.19.43.00/4-Acetyl-1-phenylpyrazole/Japan

4-Acetyl-1-phenylpyrazole from Japan

4-Acetyl-1-phenylpyrazole contains an unfused pyrazole ring with aromatic ketone substitution, properly classified in HTS 2933.19.43.00. The pyrazole moiety determines classification over acetyl group per chapter note numerical order rules. Used in advanced materials synthesis.

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%

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Import Tips

• Include 1H-NMR spectrum confirming pyrazole proton shifts; declare acetyl as substituent not principal function; monitor for keto-enol tautomerism in COA