FLUORESCEIN SODIUM

Description

Physical state at 20 °C	Solid	Colour	Dark red crystalline
Odour	Odorless	pH value	8.3 at 10 g/l at 20 °C
Melting point/ Freezing point [°C]	> 300 °C	Solubility in water [% weight]	500 g/l at 20 °C
Partition coefficient Log Pow octanol / water at 20°C	-0.67

Appearance	Orange-red to green-brown to dark brown powder
Identity (IR)	Confirms to structure
Loss on drying (at 105°C)	Max 10.0%
Absorption maxima (in buffer pH 8.0)	488 to 491 nm
UV absorbance ratio (P-15/P+15)	1.2 – 1.7
Specific absorptivity 1%/1cm (at λmax; buffer pH 8.0)	Min 1700

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