2-Phenyl-2-(p-toluenesulfonyloxy)acetophenone

2-苯基-2-(对甲苯磺酰氧基)苯乙酮

Also known as: 2-Phenyl-2-tosyloxyacetophenone, 2-Oxo-1,2-diphenylethyl 4-methylbenzenesulfonate, (2-oxo-1,2-diphenylethyl) 4-methylbenzenesulfonate, 1-benzoyl-1-phenylmethyl p-toluenesulfonate, alpha-(p-Toluenesulfonyloxy)deoxybenzoin, alpha-(Tosyloxy)deoxybenzoin, O-(p-Toluenesulfonyl)benzoin, O-Tosylbenzoin, Benzoin p-toluenesulfonate, Benzoin 4-toluenesulfonate, p-Toluenesulfonic acid α-benzoylbenzyl ester, α-Benzoylbenzyl p-toluenesulfonate, Desyl tosylate

2-Phenyl-2-(p-toluenesulfonyloxy)acetophenone (CAS 1678-43-9) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C21H18O4S and a molecular weight of 366.43000 g/mol. It is also known as 2-Phenyl-2-tosyloxyacetophenone, 2-Oxo-1,2-diphenylethyl 4-methylbenzenesulfonate and (2-oxo-1,2-diphenylethyl) 4-methylbenzenesulfonate. Key properties include a melting point of 109ºC, a boiling point of 546.83ºC at 760 mmHg, a density of 1.258g/cm3 and a flash point of 284.512ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

1678-43-9

Jingsj CID

J-31354-6

Molecular Formula

C₂₁H₁₈O₄S

Chinese Name

2-苯基-2-(对甲苯磺酰氧基)苯乙酮

Molecular Weight

366.43000 g/mol

Category

Solvents

Last updated

8/21/2026