... "Toxic Phos- phorous Esters. Chemistry. ... The organic layer was washed with saturated sodium sulfate solution and fractionated to give 33 g. (47%) of 4-methylmercap- tophenol, bp 146-148 (10 mm.). ... (3) E. Ott and H. Finkrn, Ber., 68B, 1703 (192.5). (4) T. L. Cairns, e1 al., J . Am. ...