TsCl 99% Pure for Synthesis from Canada
High purity p-toluenesulfonyl chloride (99%) for laboratory synthesis, classified under HTS 2904.10.10.00 as the specifically named sulfonated toluene derivative. Essential for alcohol and amine protection in pharmaceutical intermediates.
Duty Rate — Canada → United States
15.5%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Lab grade requires additional end-use statement distinguishing from industrial bulk
• Nitrogen blanketing certificates prevent decomposition claims at customs inspection
• CAS 98-59-9 verification mandatory; sulfonamide contamination shifts to 2921