2,2'-((4-Acetyl-1,3-phenylene)bis(oxy))bisacetic acid diethyl ester 2,4-Bis(carbethoxymethoxy)acetophenone 87048-88-2 ACETIC ACID, 2,2'-((4-ACETYL-1,3-PHENYLENE)BIS(OXY))BIS-, DIETHYL ESTER BRN 4542958