123-56-8 2,5-Diketopyrrolidine 2,5-Dioxopyrrolidine 2,5-Pyrrolidinedione 3,4-Dihydropyrrolidine Butanimide NSC11204 Succinic acid imide Succinic imide Succinimide Succinimide-Sauba WLN: T5VMVTJ