Bromophenol blue / tetrabromophenol sulfonphthalein / BPb
Item No.： SR0045
Store at： RT
English Name: BPb; Bromophenol blue； 3',3'',5',5''-Tetrabromophenolsulfonephthalein
Other names: bromophenol blue; Tetrabromophenol sulfonphthalein; Tetrabromophenol sulfonphenolphthalein; Tetrabromophenol sulfonphthalein; Tetrabromophenol sulfonyl phthalide; 3,3 ', 5,5' - tetrabromosulfonphenolphthalein
CAS No.: 115-39-9
C19H10Br4O5S=669.97
Grade: ind
PH discoloration range: 3.0 (yellow) ～ 4.6 (blue violet)
Ethanol dissolution test: acceptable
Mass absorption coefficient ε/ （L/cm?g）：≥115.0
Burning residue: ≤ 0.25%
Physicochemical properties: light yellow to brownish yellow powder. It is easily soluble in sodium hydroxide solution, soluble in methanol, ethanol and benzene, and slightly soluble in water (about 0.4g/100ml). Melting point 279 ℃ (decomposition), maximum absorption wavelength 422nm
Purpose: biochemical research. Acid base indicator; Adsorption indicator
Saving: RT
