2930.90.49.10/Thioglycolic Acid 99% Pure/Canada

Thioglycolic Acid 99% Pure from Canada

Thioglycolic acid (mercaptoacetic acid), a chemically defined organic compound with the formula HSCH₂COOH, classified under HTS 2930.90.4910 as an organo-sulfur acid. It features a sulfur atom directly linked to carbon, fitting Chapter 29 note for separate chemically defined compounds.

Duty Rate — Canada → United States

4.2%

Rate breakdown

9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter

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Import Tips

• Provide Safety Data Sheet (SDS) and Certificate of Analysis confirming purity ≥99% and CAS 68-11-1 identity

• Verify compliance with TSCA inventory listing; include proper UN 1940 hazardous material declaration

• Avoid misclassification as mixtures; ensure product meets 'separate chemically defined compound' criteria per Chapter 29 notes