2,2-Dimethyl-1,3-benzodioxol-4-yl N-propionyl-N-methylcarbamate 2,2-Dimethyl-1,3-benzodioxol-4-yl methyl(1-oxopropyl)carbamate 40373-42-0 Carbamic acid, methyl(1-oxopropyl)-, 2,2-dimethyl-1,3-benzodioxol-4-yl ester