This substance, synthesized in an effort to obtain a colored compound capable of attachment to biological tissue through mercaptan groups only, has been applied successfully in biological investigations. 132 Synthesis.-35.4 g. of p-aminophenylmercuric acetate (mp 166-167"), prepared by direct mercuration of aniline according to the method of Dimroth,* was diazotized at-5" in 500 ml. of 50% acetic acid with 7.0 g. of sodium nitrite, ...
