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
23.3%
Rate breakdown
9903.04.6210.8%Patented pharmaceutical articles that are the product of Japan, of a European Union member country, of South Korea, of Switzerland, or of Liechtenstein as provided for in subdivisions (c) and (f) of U.S. note 40 to this subchapter
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
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