1-(2-Methoxycarbonylethyl)aziridine 1-(2-Methoxycarbonylethyl)ethylenimine 1-Aziridinepropanoic acid, methyl ester 1-Aziridinepropionic acid, methyl ester 1073-77-4 Methyl .beta.-(1-aziridinyl)propionate Methyl 1-aziridinepropionate Methyl 3-(1-aziridinyl)propionate Methyl 3-ethyleniminopropionate NSC101297