35570-85-5 BRN 1085316 Dithiophosphorsaeure-O,O-diaethyl-S-(oxazolo(4,5-b)pyridn-2(3H)thion-3-yl)methyl-ester Phosphorodithioic acid, O,O-diethyl ester, S-ester with 3-(mercaptomethyl)oxazolo(4,5-b)pyridin-2(3H)-thione