3852-09-3 Methyl .beta.-methoxypropionate Methyl 3-methoxypropanoate Methyl 3-methoxypropionate Methyl methoxypropionate NSC65578 Propanoic acid, 3-methoxy-, methyl ester Propanoic acid, 3-methoxy-, methyl ether Propionic acid, 3-methoxy-, methyl ester