In the title triaryloxazolone derivative, C24H18ClNO6S, the three phen
yl rings are oriented in a propeller-like fashion around the central o
xazolone ring, with dihedral angles of 55.7(1) (acetoxyphenyl), 56.4(1
) (methylsulfonylphenyl) and 25.0(1)degrees (phenyl).