Urothion, ein gelber, schwefelreicher Farbstoff aus Menschenharn (Kurze Mitteilung)

Abstract

Urothione, a crystalline yellow pigment, was isolated from human urine (yield: 40-80 mg./1000 liters). The new compound was soluble in acid and alkali, very sparingly soluble in water, alc., and acetone, and insoluble in ether and chloroform. Urothione analyzed for C11H13O3N5S2 and was further characterized by a crystalline tetra-acetate (m.p. 220[degree], uncorr.) and 2 color reactions. The pigment contained a free amino group (van Slyke) and yielded one mole of methyl mercaptan on catalytic hydrogenation. Urothione was also found in human and beef liver and other organs.