2-Ethyl-4,8-dimethyl-5-oxo-6-oxa-3,9-dithia-2,4,7-triazadec-7-enoic acid propyl ester 3-oxide 6-Oxa-3,9-dithia-2,4,7-triazadec-7-enoic acid, 2-ethyl-4,8-dimethyl-5-oxo-, propyl ester, 3-oxide 77248-40-9