FLUORESCEIN SODIUM

C.I.No.45350 Sodium fluorescein is used as a fluorescent tracer to study blood-brain barrier (BBB) and blood-spinal cord barrier (BSCB) permeability

Article No. Grade Purity CAS No. Molecular Formula Molecular Weight H.S. Code Shelf Life
SC0290 518-47-8 C20H10Na2O5 376.28 3204.9000 60 Months

Packings

25 g,100 g,1000 g

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
Solubility in water [% weight] 500 g/l at 20 °C
Partition coefficient Log Pow octanol / water at 20°C -0.67

Specifications

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

Safety Information and Hazard Symbols

Symbol
Signal Word
UN No.
IMCO Class No.
Packing Group
Hazardous Statement
Precaution Statement
Risk Statement
Safety Statement 22-24/25
Revision Date : 20-Mar-2017