Methanesulfonyl Chloride from Canada
Methanesulfonyl chloride (MsCl) is a colorless liquid organo-sulfur compound used as a reagent in organic synthesis for converting alcohols to mesylates. It falls under HTS 2930.90.92.51 as an organo-sulfur compound containing sulfur directly linked to carbon, classified as 'other' within heading 2930. This compound is essential for sulfonation reactions in pharmaceutical and fine chemical production.
Duty Rate — Canada → United States
3.7%
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
• Ensure COA verifies purity >99% as impurities may affect classification or trigger REACH compliance
• Provide safety data sheets for corrosive handling; common pitfall is inadequate HazMat labeling
• Verify stabilizer content doesn't exceed note 2(f) limits to avoid reclassification