Cinchonine Hydrochloride from Mexico
Cinchonine hydrochloride, a salt from cinchona, acts as a chiral resolving agent in pharmaceutical synthesis. Classified in HTS 2939.20.00 as a chemically defined salt of cinchona alkaloids per chapter 29 scope. Used in laboratories for asymmetric synthesis applications.
Duty Rate — Mexico → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Include intended use declaration for R&D exemption from some pharma regs; provide NMR/GC purity assays; avoid bulk packaging over 25kg to simplify lab import