High-Purity Folic Acid 99.5% from China
Ultra-high purity 99.5% folic acid for research and premium supplement applications. Precisely matches HTS 2936.29.10.00 criteria as chemically defined, unmixed vitamin B9. Low endotoxin specification for injectable use.
Duty Rate — China → United States
100%
Rate breakdown
9903.04.60100%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
9903.05.860%Universal product exemption (U.S. note 52(b))
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
• Provide endotoxin testing (<0.1 EU/mg) for parenteral grade verification
• Include chiral purity certificate confirming L-configuration
• Reference USP/NF, EP, JP multiple compendial compliance on documentation