2918.30.90.00/4-Hydroxyphenylpyruvic Acid/Japan

4-Hydroxyphenylpyruvic Acid from Japan

4-Hydroxyphenylpyruvic acid is a keto acid featuring both a carboxylic acid group and a ketone functionality, classifying it under HTS 2918.30.90.00 as a carboxylic acid with ketone function but without other oxygen functions beyond those specified. It is used in biochemical research and as an intermediate in pharmaceutical 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

• Provide detailed chemical analysis (NMR, MS) confirming structure and purity to verify classification under 2918.30

• Include Safety Data Sheet (SDS) and transport certificates for hazardous goods handling during customs clearance

• Avoid misclassification as aromatic ketones (2914) by documenting the dominant carboxylic acid function