1-Hydroxymethyl-hexahydro-azepin-2-on, 1-hydroxymethyl-hexahydro-azepin-2-one, 1-hydroxymethyl-azepan-2-one, N-Methylolcaprolactam, N-hydroxymethyl-2-caprolactam, hexahydro-1-hydroxymethyl-2H-azepin-2-one
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