1-Propenyl methyl disulfide 5905-47-5 Disulfide, methyl 1-propenyl Disulfide, methyl propenyl EINECS 227-605-4 FEMA No. 3576 Methyl 1-propenyl disulfide Methyl prop-1-enyl disulphide Methyl propenyl disulfide Methyldithio-1-propene