Bovine Insulin Crystals from Mexico
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 — Mexico → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
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