4-Methoxybenzenesulfonyl chloride

• CAT Number: L011498
• CAS Number: 98-68-0
• Molecular Formula: C7H7ClO3S
• Molecular Weight: 206.65
• Purity: ≥95%
• IUPAC Name: 4-methoxybenzenesulfonyl chloride
• InChI: InChI=1S/C7H7ClO3S/c1-11-6-2-4-7(5-3-6)12(8,9)10/h2-5H,1H3
• InChIKey: DTJVECUKADWGMO-UHFFFAOYSA-N
• SMILES: COC1=CC=C(C=C1)S(=O)(=O)Cl

4-Methoxybenzenesulfonyl chloride（Cat No.:L011498）is an aromatic sulfonyl chloride derivative used as a sulfonating agent in organic synthesis. Featuring a para-methoxy group on the benzene ring, it offers enhanced reactivity and selectivity in forming sulfonamides and sulfonate esters. This compound is commonly employed in the synthesis of pharmaceuticals, agrochemicals, and dyes. Its electrophilic sulfonyl chloride group readily reacts with amines and alcohols under mild conditions. The methoxy substituent influences the electronic properties, improving solubility and reactivity. Moisture-sensitive, it is typically handled under dry, inert conditions to prevent hydrolysis.