Resazurin

Resazurin (7-Hydroxy-3H-phenoxazin-3-one 10-oxide) is a blue dye, itself weakly fluorescent until it is irreversibly reduced to the pink colored and highly red fluorescent resorufin. It is used as an oxidation-reduction indicator in cell viability assays for bacteria and mammalian cells, and for measuring aerobic respiration and exchange with the ...
Found on http://en.wikipedia.org/wiki/Resazurin

resazurin

A blue compound, 7-hydroxy-3H-phenoxazin-3-one 10-oxide, used as a redox indicator in the reductase test of milk and also as a pH indicator (orange at 3.8, violet at 6.5). ... (05 Mar 2000) ...
Found on http://www.encyclo.co.uk/local/20973

resazurin

Type: Term Pronunciation: rē-saz′yū-rin Definitions: 1. A blue compound used as a redox indicator in the reductase test of milk and also as a pH indicator (orange at 3.8, violet at 6.5).
Found on http://www.medilexicon.com/medicaldictionary.php?t=77493
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