thiotoluidine

Noun

 * 1)  Diamidoditolyl sulphide, (C7H6ּ·NH2)2S, a substance used in the production of some azo dyes.
 * 2) * 1889, Society of Dyers and Colourists, Bradford, Eng. (Yorkshire), The Journal (volumes 5-6, page 81)
 * If the amount of sulphur be doubled, thiotoluidine is almost absent, the product containing, together with dehydrothiotoluidine, a more highly condensed base