Oxydemeton-methyl, i.e., demeton-S-methyl sulfoxide,
is a colorless oil, bp 106 C/0.01 mm Hg, vp 3.8 mPa
(20 C). It is miscible with water and soluble in most
organic solvents, except petroleum ether. Log Kow =
0.74(21 C). Oxydemeton-methyl is relatively stable in
acidic media but hydrolyzed in alkalinemedia;DT50 values
(22 C) at pH 4, 7, and 9 are 107, 46, and 2 d, respectively.
