chemical name |
bromocresol green |
molecular formula |
c21h14br4o5s |
cas no. |
76-60-8 |
einecs no. |
200-972-8 |
molecular weight |
698.02 |
molecular structure |
|
details |
appearance: white or pale grey crystal ph change range: 3.8(yellow green)-5.4(blue) maximal absorption wavelength (nm): λ1 (ph3.8) 440-445 λ2 (ph5.4) 615-618 quality absorpting coefficient (l/cm·g): α1 [λ1(ph3.8,dry sample)] 24-28 α2 [λ2(ph5.4,dry sample)] 53-58 solubility in alcohol: passes test ignition residue (sulfate): 0.25%max loss on drying: 3.0%max solubility: easy solve in alcohol and benzene, decline solve in water. packing: 25kg/fibre drum |
main application |
used as acid and alkali indicators, cell dye. |