1888-91-1 2H-AZEPIN-2-ONE, 1-ACETYLHEXAHYDRO- 2H-Azepin-2-one, 1-acetyltetrahydro- 5-21-06-00460 (Beilstein Handbook Reference) AI3-39193 Acetylcaprolactam Acetylkaprolaktam [Czech] BRN 0119598 EINECS 217-565-6 N-Acetyl-6-caprolactam N-Acetylcaprolactam N-Acetylhexanelactam NSC 522408