Water soluble,blue fluorescent lacZ B-galactosidase reagent useful for in vitro FACS analysis techniques.Absorption 330nm; upon enzymatic cleavage 388nm.Emission at pH 10 396nm; upon enzymatic cleavage at pH 9 445nm.Synonyms:CAS Number:64664-99-9Molecular Formula:C₁₆H₁₆O₁₀Molecular Weight:368.28Appearance:White to off-white powderPurity (HPLC):≥90%Identity (1H NMR):Conforms to structure