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3-Methylbutyric Acid (Isovaleric Acid) from Japan

Isovaleric acid (3-methylbutanoic acid) is a saturated acyclic branched C5 monocarboxylic acid with strong cheesy odor, used in flavors and biochemical research. Classified HTS 2915.90.18.90 as other saturated acyclic 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%

Import Tips

Declare odor characteristics and FEMA# 3096 for flavor use

Ventilated packaging required due to strong volatile odor

3-Methylbutyric Acid (Isovaleric Acid) from Japan — Import Duty Rate | HTS 2915.90.18.90