Methanesulfonyl Chloride
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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If supplied as stabilized solution for transport
Solutions in solvents for safety/transport may shift to Chapter 29 hydrocarbons per note 2(e).
If imported as pharmaceutical intermediate
Nucleic acid derivatives or similar may fall under later Chapter 29 heading per classification note 3.
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Import Tips & Compliance
• 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
Related Products under HTS 2930.90.92.51
Ethyl Methanethiosulfonate
Ethyl methanethiosulfonate is a synthetic organo-sulfur reagent used in protein chemistry for cysteine modification. It qualifies under HTS 2930.90.92.51 as an other organo-sulfur compound with S-C bonds, not covered by specific 2930 subheadings. Primarily employed in biochemical research and proteomics.
Di-tert-butyl Disulfide
Di-tert-butyl disulfide is an organo-sulfur compound used as a polymerization modifier and lubricant additive. Falls under HTS 2930.90.92.51 as other organo-sulfur with S-S and C-S linkages. Provides steric protection in synthetic applications.
S-Phenyl Thioacetate
S-Phenyl thioacetate serves as a protected thiol equivalent in organic synthesis, releasing thiophenol under specific conditions. Under HTS 2930.90.92.51 as other organo-sulfur with S-C and C=O functions. Used in peptide and natural product synthesis.
Methyl 3-Mercaptopropionate
Methyl 3-mercaptopropionate is an organo-thiol ester used in polymer synthesis and flavor chemistry. HTS 2930.90.92.51 classification as other organo-sulfur compound with primary thiol functionality. Intermediate for methionine production.
Bis(2-chloroethyl) Sulfide
Bis(2-chloroethyl) sulfide, known as mustard gas precursor, is a toxic organo-sulfur compound with military history. Strictly controlled under HTS 2930.90.92.51 as other organo-sulfur. Used legitimately in pharmaceutical synthesis under license.
Tributylphosphine Sulfide
Tributylphosphine sulfide is an organo-sulfur-phosphorus compound used as a ligand precursor and polymer stabilizer. Classifies under HTS 2930.90.92.51 as other organo-sulfur with P-S-C connectivity. Stable white solid for catalysis applications.