Specification Product Name GIEMSA’S STAIN Synonyms Acid Yellow 73, Uranine Dihydrate CAS NO. 51811-82-6 Appearance Dark Green Powder Structure     Tests    Limits Solubility 0.1% (MeOH) - Clear Blue Solution with greenish fluorescence Absorptivity 1%/1cm, at λ max.523.0 nm at λ max.648.0 nm - >600 - >950 Loss On Drying at 1100C (1hr) - <10%         REVISED: 1-1-2012