Rhodamine B / Rose Red B / basic violet 10 / tetraethyl rhodamine / rhodamine 610 / ruixianghong B

English name：Rhodamine B；Rhodamine 610；Rhodamine O；Brilliant pink B；Tetraethyl rhodamine；C.I Basic violet10；C.I Food red 15；Pilot578

Other names: Rose Red B; Alkaline violet 10; Tetraethyl rhodamine; Rhodamine B; Rhodamine 610; Ruixiang red B; Rose essence B; Blue light alkaline ruixianghong; Alkaline pink; 9 - (2-carboxyphenyl) - 3,6-bis (diethylamino) xanthon chloride; Alkaline rose essence; Basic rose essence B

CAS No.: 81-88-9

C28H31ClN2O3=479.02

Grade: ar

Sensitivity test: acceptable

Water dissolution test: acceptable

Burning residue: ≤ 0.25%

Physicochemical properties: green crystal or red purple powder. It is easily soluble in water and ethanol, slightly soluble in acetone, chloroform, hydrochloric acid and sodium hydroxide solution (about 70% water, 10% alcohol and 150% chloroform). The aqueous solution is blue red and has strong fluorescence after dilution. It is fused at about 260 ℃ and melted at about 280 ℃. The maximum absorption wavelength is 552nm. The maximum fluorescence wavelength is 610nm. The laser peak wavelength is 610nm. The tuning range is 578 ～ 610nm. Moderate toxicity, half lethal dose (rat, oral) 500mg / kg.

Purpose: biochemical research. Photometric determination of gold, gallium, mercury, antimony (V), thallium (III), fluorescence determination of manganese, cobalt, etc., and colorimetric determination of cadmium. Redox indicator is a precipitant for titrating tin, antimony, niobium and tantalum. Biological stain. Series of laser dyes

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