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.
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Import Tips & Compliance
• Provide end-use statement for research vs. commercial to avoid dual-use scrutiny
• Ensure <0.1% heavy metal impurities per USP standards for lab reagent classification
• Package in amber glass with inert atmosphere; light-sensitive nature common inspection issue
Related Products under HTS 2930.90.92.51
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.
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.