3-(Trifluoromethylsulfonyloxy)-2-butenoic acid methyl ester

3-三氟甲磺酰氧基-2-丁烯酸甲酯

Also known as: 3-trifluoromethanesulfonyloxy-but-2-enoic acid methyl ester, Methyl 3-(trifluoromethylsulfonyloxy)crotonate, Methyl 3-(((trifluoromethyl)sulfonyl)oxy)but-2-enoate, Methyl (Z)-3-(trifluoromethylsulfonyloxy)but-2-enoate, 2-Butenoic acid, 3-[[(trifluoromethyl)sulfonyl]oxy]-, methyl ester

3-(Trifluoromethylsulfonyloxy)-2-butenoic acid methyl ester (CAS 133559-43-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H7F3O5S and a molecular weight of 248.17700 g/mol. It is also known as 3-trifluoromethanesulfonyloxy-but-2-enoic acid methyl ester, Methyl 3-(trifluoromethylsulfonyloxy)crotonate and Methyl 3-(((trifluoromethyl)sulfonyl)oxy)but-2-enoate. Key properties include a boiling point of 248.3ºC at 760mmHg, a density of 1.474g/cm3 and a flash point of 104ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

133559-43-0

Jingsj CID

J-1107455-3

Molecular Formula

C₆H₇F₃O₅S

Chinese Name

3-三氟甲磺酰氧基-2-丁烯酸甲酯

Molecular Weight

248.17700 g/mol

Category

Organic Acids

Last updated

8/21/2026