3',3''-Dibromothymolsulfonephthalein/BTB/Bromothymol blue

English Name: BTB; Bromothymol blue； 3',3''-Dibromothymolsulfonephthalein

Other names: bromothymol blue; Bromothymol blue; Bromothymol blue; 3,3 ′ - dibromo thymol sulfonylphthalein; 3', 3' '- dibromo thymol blue; 3,3 ˊ- Dibromo thymol sulfonphthalein

CAS No.: 76-59-5

C27H28Br2O5S=624.38

Grade: ind

PH discoloration range: 6.0 (yellow) ～ 7.6 (blue)

Dissolution clarity: acceptable

Physicochemical properties  : nearly white or cream to rose red crystal or powder. It is soluble in ethanol, ether, methanol and dilute alkali hydroxide solution, slightly soluble in benzene, toluene and xylene, slightly soluble in water and almost insoluble in petroleum ether. Melting point 200 ~ 202 ℃, maximum absorption wavelength 420nm

Purpose: biochemical research. Acid base indicator; Adsorption indicator; For chromatographic analysis

Saving: RT