Isovaleric Acid from Japan
Isovaleric acid (3-methylbutanoic acid) is a branched-chain saturated monocarboxylic acid with cheesy odor, used in flavors and perfumes. HTS 2915.29.50.00 covers this as 'other' acyclic saturated acid.
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
• CAS 503-74-2 confirmation essential to distinguish from straight-chain
• Odor documentation may help CBP verification during examination
• Low temperature shipping required (melting point -2°C)