Levorphanol (S)-Tartrate Dihydrate from Mexico
The dihydrate form of (S)-levorphanol tartrate maintains the core isoquinoline opioid structure with added water crystallization. HTS 2933.41.00.00 classification holds as salt of specified INN, with hydration not affecting Chapter 29 organic compound status. Bulk import for sterile injectable opioid production.
Duty Rate — Mexico → United States
0%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Document water content via Karl Fischer titration; validate chiral purity (>99% S-enantiomer)
• Separate from free base shipments to maintain salt HTS specificity