Bovine Insulin Crystals from China
Highly purified crystalline form of bovine pancreas-derived insulin. Classifies under HTS 2937.12.00.00 as natural insulin hormone meeting chapter purity requirements.
Duty Rate — China → United States
100%
Rate breakdown
9903.04.60100%Pharmaceuticals: 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
• Country of origin certification for BSE-free status; EU/US approved sources only
• Crystalline form stable when refrigerated; avoid mechanical shock in transit
• Pure hormone crystals stay in 2937; dissolved or formulated move to Chapter 30