Fluorescein disodium salt, pure
:518-47-8
:
:C₂₀H₁₀Na₂O₅
:MFCD00167039
:376.28 g/mol
:13,04185
:320 °C
:1,601 g/cm³ (20 °C)
:Ambient
:208-253-0
- Appearance:Orange-red to green-brown to dark brown Powder
- Infrared spectrum:Conforms
- Loss on drying:≤10 % (105°C)
- UV Lambda max:488 to 491 nm (in buffer pH 8)
- Absorption Ratio P-15/P+15:1.2 to 1.7
- Specific absorbance A (1%/1cm):≥1700 (at lambda max.)