Synonyms1,3-Dihydro-2H-indol-2-one; Indol-2(3H)-one; Diclofenac EP Impurity E Close 1,3-Dihydro-2H-indol-2-one; Indol-2(3H)-one; Diclofenac EP Impurity E Related products Oxindole (2-Indolone) M.F. M.W. 133.15 CAT# AR-I08415 CAS# 59-48-3