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2915.90.50/3-Methylbutyric Acid/Japan

3-Methylbutyric Acid from Japan

3-Methylbutyric acid (isovaleric acid) is a branched saturated acyclic C5 monocarboxylic acid with cheesy odor used in flavors. Classifies under HTS 2915.90.50 as other saturated monocarboxylic acids.

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

• Ventilate containers - strong odor may trigger hazmat inspection

• Include refractive index (1.395-1.399) for identity confirmation

• Separate from strong oxidizers per safety data requirements