Methanesulfonyl Chloride from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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