Auramine O

Image:Auramine O.png Auramine O, also called Basic yellow 2, Pyocatanium aureum, aizen auramine, Pyoktanin Yellow, Canary Yellow, Pyoktanin, or C.I. 41000, is a diarylmethane dyeused as a fluorescent stain. It has the appearance of yellow needle crystals. It can be used to stain acid-fastbacteria(eg. Mycobacterium, where it binds to the mycolic acidin its cell wall) in a way similar to Ziehl-Neelsen stain. It is very soluble in water and soluble in ethanol. It can be used as a fluorescent version of Schiff reagent.

Auramine O can be used together with Rhodamine Bas the Truant auramine-rhodamine stainfor Mycobacterium tuberculosis. It can be also used as an antisepticagent.

Its CAS numberis 2465-27-2[1]and its SMILESstructure is [NH2+]=C (C2=CC=C (N(C)C)C=C2) C1=CC=C(N (C)C)C=C1.

Its risc and safety phrases are R22 R24 R40 S36/37 S45.

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It uses material from the http://en.wikipedia.org/wiki/Auramine+O Wikipedia article Auramine O.