Product name:Solvent Red 49 Synonyms:Rhodamine B base CAS No.:509-34-2 Purity: Appearance:Powder Molecular Weight:442.56 Chemical Formula:C28H30N2O3 Product Description:Rhodamine B base is used as a biological staining dye. Rhodamine B base is also used as a laser dye, tunable around 610 nm with the fluorescence yield being temperature dependent. Application:A fluorescent biological staining dye Storage:Store at room temperature Solubility:Soluble in ethanol (1 mg/ml), methanol, chloroform, and DMF. Insoluble in water.