Thiolactic Acid from China
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 — China → United States
41.7%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
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