cis-[2-(2,4-Dichlorophenyl)-2-(1H-imidazol-1-ylmethyl)-1,3-dioxolan-4-yl]methyl-4-methylbenzenesulphonate

顺式-[2-(2,4-二氯苯基)-2-(1H-咪唑-1-基甲基)-1,3-二氧戊环-4-基]甲醇对甲苯磺酸酯

Also known as: Ketoconazole EP Impurity E, Active Ester, Cis-Tosylate, MFCD07367827, UNII:644X337Z6T, [(2R,4R)-2-(2,4-Dichlorophenyl)-2-(1H-imidazol-1-ylmethyl)-1,3-dioxolan-4-yl]methyl 4-methylbenzenesulfonate, [(2R,4S)-2-(2,4-Dichlorophenyl)-2-(1H-imidazol-1-ylmethyl)-1,3-dioxolan-4-yl]methyl 4-methylbenzenesulfonate, cis-2-(2,4-Dichlorophenyl)-2-(1H-imidazol-1-ylmethyl)-4-(p-toluenesulfonyloxy)methyl-1,3-dioxolane, (Z)-2-(2,4-Dichlorophenyl)-2-(1H-imidazol-1-ylmethyl)-1,3-dioxolan-4-ylmethyl 4-methylbenzenesulfonate

cis-[2-(2,4-Dichlorophenyl)-2-(1H-imidazol-1-ylmethyl)-1,3-dioxolan-4-yl]methyl-4-methylbenzenesulphonate (CAS 134071-44-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C21H20Cl2N2O5S and a molecular weight of 483.365 g/mol. It is also known as Ketoconazole EP Impurity E, Active Ester and Cis-Tosylate. Key properties include a melting point of 120-122ºC, a boiling point of 665.7±55.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 356.4±31.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

134071-44-6

Jingsj CID

J-1604952-7

Molecular Formula

C₂₁H₂₀Cl₂N₂O₅S

Chinese Name

顺式-[2-(2,4-二氯苯基)-2-(1H-咪唑-1-基甲基)-1,3-二氧戊环-4-基]甲醇对甲苯磺酸酯

Molecular Weight

483.365 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026