(RS)-N-(Mercaptoacetyl)valine ethyl ester S-ester with O,O-diethyl phosphorothioate 73175-11-8 BRN 2393004 DL-Valine, N-(((diethoxyphosphinyl)thio)acetyl)-, ethyl ester Valine, N-(mercaptoacetyl)-, ethyl ester, S-ester with O,O-diethyl phosphorothioate, DL-