Thiolactic Acid from Japan
Thiolactic acid (2-mercaptopropanoic acid) contains alpha-mercapto functionality on lactic acid backbone. Pure compound status under Chapter 29(a) places it in HTS 2930.90.4920 as mercaptocarboxylic acid. Used in depilatory creams and flavor synthesis.
Duty Rate — Japan → United States
15%
Rate breakdown
9903.04.6210.8%Pharmaceuticals: patented pharma from JP/EU/KR/CH/LI — 15% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Odor threshold low; sealed containers with vapor scrubber recommended
• Confirm <0.1% lactic acid impurity to maintain pure compound classification
• Cosmetic grade requires additional FDA color additive petition