azoindoxyl

plural azoindoxyls

1. chemistryAny indoxyl that contains a two atom nitrogen group (-N=N-) uniting two hydrocarbon radicals, typically used for dyes in electron microscopy.

   The nitro-blue tetrazolium method with menadiol diphosphate was found to be superior to existing methods employing azo, azoindoxyl or tetrazolium salts and to metal precipitation methods.

   2006, José Luis Millan, Mammalian Alkaline Phosphatases, page 254

   1 more example

   For example, certain sulfur-containing dyes reduce osmium tetroxide to osmium black, which is electron opaque (Hanker et al., 1964), and certain azoindoxyls form insoluble osmium-containing complexes ( Holt and Hicks, 1966).

   1970, M. A. Hayat, Principles and Techniques of Electron Microscopy, page 252