3-(Dimethylamino)-1-methyl-3-oxoprop-1-enyl dimethyl phosphate 3-Hydroxy-N,N-dimethylcrotonamide dimethyl phosphate 3735-78-2 EINECS 223-101-3 NSC 370784 O,O-Dimethyl 1-(N,N-dimethylcarbamoyl)-1-propen-2-yl phosphate Phosphoric acid, 3-(dimethylamino)-1-methyl-3-oxo-1-propenyl dimethyl ester phosphoric acid, dimethyl ester, ester with 3-hydroxy-N,N-dimethylcrotonamide