19797-08-1 2H-AZEPIN-2-ONE, HEXAHYDRO-1-ETHYL- 2H-Azepin-2-one, 1-ethylhexahydro- 5-21-06-00452 (Beilstein Handbook Reference) BRN 0111499 Hexahydro-1-ethyl-2H-azepin-2-one N-Ethyl-epsilon-caprolactam