FLUORESCEIN
FLUORESCEIN
C.I.No.45350Fluorescein is a fluorophore commonly used in microscopy, in a type of dye laser as the gain medium, in forensics and serology to detect latent blood stains, and in dye tracing.
Short Name: FLUORESCEIN
Synonym: resorcinolphthalein, C.I. 45350, solvent yellow 94, D & C yellow no. 7, angiofluor, Japan yellow 201, soap yellow
Basic Details
Article No.
LG101159
Grade
Purity
95%
CAS No.
2321-07-5
HS Code
3204.9000
Shelf Life
60 Months
Packings Avialable
Physical Properties
Physical state at 20 °C
Solid
Colour
Orange red powder
Odour
Odorless
Melting point/ Freezing point [°C]
320 °C
Chemical Specifications
Appearance
Orange red brown or maroon powder
Assay (on anhydrous basis)
Min 95%
Solubility (in 1N NaOH)
50 mg/ml
Molar absorptivity E(490+/-2nm)
Min 70000
Molar absorptivity E(284+/-2nm)
Min 12000
Molar absorptivity E(238+/-2nm)
Min 39000
Loss on drying (at 105°C)
Max 5.0%
Melting point
About 315 °C
Safety Information & Hazard Symbols
Symbol
GHS07
Signal Word
Warning
Hazardous Statement
H319
Precaution Statement
P305 + P351 + P338