Methyl 5-(chlorosulfonyl)-4-methoxythiophene-3-carboxylate

5-氯磺酰-4-甲氧基噻吩-3-羧酸甲酯

Also known as: 3-Methoxy-4-(methoxycarbonyl)thiophene-2-sulfonyl chloride, 5-(Chlorosulfonyl)-4-methoxy-3-thiophenecarboxylic acid methyl ester, Methyl 5-chlorosulfonyl-4-methoxythiophene-3-carboxylate, 3-Methoxy-4-(methoxycarbonyl)thiophene-2-sulphonyl chloride, Methyl 5-chlorosulphonyl-4-methoxythiophene-3-carboxylate

Methyl 5-(chlorosulfonyl)-4-methoxythiophene-3-carboxylate (CAS 175203-45-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H7ClO5S2 and a molecular weight of 270.71000 g/mol. It is also known as 3-Methoxy-4-(methoxycarbonyl)thiophene-2-sulfonyl chloride, 5-(Chlorosulfonyl)-4-methoxy-3-thiophenecarboxylic acid methyl ester and Methyl 5-chlorosulfonyl-4-methoxythiophene-3-carboxylate. Key properties include a melting point of 93ºC, a boiling point of 406.2ºC at 760mmHg, a density of 1.525g/cm3 and a flash point of 199.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

175203-45-9

Jingsj CID

J-1138381-5

Molecular Formula

C₇H₇ClO₅S₂

Chinese Name

5-氯磺酰-4-甲氧基噻吩-3-羧酸甲酯

Molecular Weight

270.71000 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026