Fluorescein 95%
C.I.No.45350 Fluorescein 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.
resorcinolphthalein, C.I. 45350, solvent yellow 94, D & C yellow no. 7, angiofluor, Japan yellow 201, soap yellow
Product Code. |
01235 |
Grade |
|
Purity |
95% |
CAS No. |
2321-07-5 |
Molecular Formula |
C20H12O5 |
Molecular Weight |
332.31 |
H.S.Code |
3204.90000 |
Shelf Life |
60 Months |
Physical Properties
| Physical state at 20 °C |
Solid |
Colour |
Orange red powder |
Odour |
Odorless |
| Melting point/ Freezing point [°C] |
320 °C |
Packaging
Specification
| Appearance | Orange red brown or maroon powder |
| Assay (by HPLC) | 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% |
Safety Information and Hazard Symbols
Symbol: GHS07
Signal Word: Warning
Hazardous Statement: H319
Precaution Statement: P305 + P351 + P338