... ester; methyl (diethoxyphosphoryl)acetate; acetic acid, (diethoxyphosphinyl)-, methyl ester2)CAS#311-46-6, 3)Assay>=98%.Water<=0.5%. 4)Appearance:no ... in our production , please freely to contact us . Ethyl dimthylphosphonoacetate,cas#311-46-6 ,intermediate