- C.A.S. No.
- 76-60-8
- M.F.
- C21H14Br4O5S
- M.Wt.
- 698.04gm/mole
Specifications:
- Dye content
- >95%
- Transition range
- pH 3.8–5.4
Greenish yellow-Blue
- Solubility 0.1%(95%Ethanol)
- Clear solution
- Absorption maximum (pH 3.8) λ1max
- 438–443nm
- Absorption maximum (pH 5.4) λ2max
- 615–618nm
- Absorptivity (A1%/1cm at pH 3.8 at λ1max)
- 240-270
- Absorptivity (A1%/1cm at pH 5.4 at λ2max)
- 530-570
- Loss on drying (110oC)
- <3%