Pharmaceutical Grade Thioglycolic Acid USP
Ultra-pure thioglycolic acid meeting USP standards for pharmaceutical intermediates, classified under HTS 2930.90.4910. Qualifies as chemically defined organo-sulfur acid per Chapter 29 scope.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing heterocyclic oxygen ring structure
Chapter notes exclude epoxides/cyclic structures from 2930-2934; reclassifies to heterocyclic compounds.
If put up in measured doses for direct pharmaceutical use
Medicinal preparations in dosage form shift to Chapter 30 regardless of chemical definition.
If imported as diagnostic reagent composite
Laboratory reagents containing multiple defined compounds classified as mixtures in 3822.
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Import Tips & Compliance
• Submit Drug Master File (DMF) and USP certificate; comply with FDA import alert 99-30
• Endotoxin and heavy metals testing required for pharma grade; maintain <10ppm lead
• Segregate from cosmetic shipments to avoid contamination cross-alerts
Related Products under HTS 2930.90.49.10
Thioglycolic Acid 99% Pure
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.
Industrial Grade Thioglycolic Acid
Technical grade thioglycolic acid used in polymer synthesis and metal extraction, specifically classified under HTS 2930.90.4910. Meets Chapter 29 requirements as a separate chemically defined organo-sulfur acid with direct C-S bond.
Thioglycolic Acid with Stabilizer
Thioglycolic acid containing added stabilizer for transport stability, explicitly allowed under Chapter 29 note (f). Remains classified as pure compound under HTS 2930.90.4910, not as mixture.
Distilled Thioglycolic Acid
Vacuum-distilled thioglycolic acid with minimized impurities, certified for electronics-grade applications. Classified under HTS 2930.90.4910 as chemically defined organo-sulfur acid.