FLUORESCEIN SODIUM (C.I. NO. 45350)

Article No.	Grade	Purity	Cas no.	Molecular Formula	Molecular Weight	H.S. Code	Shelf Life
F0100300100			518-47-8	C₂₀H₁₀Na₂O₅	376.28	3204.9000	60 Months

Physical Properties

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

Partition coefficient Log Pow octanol / water at 20°C

-0.67

Solubility in water [% weight]

500 g/l at 20 °C

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

Safety Statement: 22-24/25