1-Methylcaprolactam 2556-73-2 2H-AZEPIN-2-ONE, HEXAHYDRO-N-METHYL- 2H-Azepin-2-one, hexahydro-1-methyl- 2H-Azepin-2-one, hexahydro-1-methyl- (8CI)(9CI) 5-21-06-00449 (Beilstein Handbook Reference) AI3-09488 BRN 0108968 EINECS 219-874-1 Hexahydro-N-methyl-2H-azepin-2-one N-Methyl-.epsilon.-caprolactam N-Methyl-e-caprolactam N-Methylcaprolactam NSC 68794 epsilon-Caprolactam, N-methyl-