Chloramphenicol Research Grade Crystals from Canada
High-purity chloramphenicol crystals (99.5%+) for laboratory research and analytical standards. Classified HTS 2941.40.00.00 as pure chemically defined antibiotic. Not for therapeutic use per labeling.
Duty Rate — Canada → United States
100%
Rate breakdown
9903.04.60100%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Include SDS and 'Research Use Only' labeling to prevent FDA drug import scrutiny
• Small package exemption possible under <100g/research; larger requires end-use verification
• HPLC certificate with impurity profile (<0.1% each) avoids 'mixture' reclassification