CAS 2321-07-5 reagent intermediate Fluorescein Manufacturer & Supplier
Sep 28th, 2022 at 01:09 Agrochemicals South Boston 45 views Reference: QJ0dNXwzaLO
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Cas 2321-07-5 Reagent Intermediate Fluorescein - Buy 2321-07-5,Fluorescein,Fluorescein Product manufacturer and supplier from China, Please contact us by Live Chat on the bottom right.
Essential details
| CAS No.: |
2321-07-5 |
| Other Names: |
Fluorescein |
| MF: |
C20H12O5 |
| EINECS No.: |
219-031-8 |
| Place of Origin: |
China |
| Type: |
reagent |
| Purity: |
95.0%min |
| Model Number: |
Fluorescein |
| Application: |
reagent |
| Appearance: |
orange to red powder |
| sample: |
available |
Supply Ability
| Supply Ability | 5 Metric Ton/Metric Tons per Month for Fluorescein |
Packaging & delivery
5kg/drum; 10kg/drum; 25kg/drumShanghai or other China port
| Packaging Details | |||||||
| Port | |||||||
| Lead time: |
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CAS 2321-07-5 reagent intermediate Fluorescein
Product Description
Fluorescein is a manufactured organic compound and dye. It is available as a dark orange/red powder slightly soluble in water and alcohol. It is widely used as a fluorescent tracer for many applications. 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. Fluorescein has an absorption maximum at 494 nm and emission maximum of 512 nm (in water). The major derivatives are fluorescein isothiocyanate (FITC) and, in oligonucleotide synthesis, 6-FAM phosphoramidite.
The color of its aqueous solution varies from green to orange as a function of the way it is observed: by reflection or by transmission, as can be noticed in bubble levels, for example, in which fluorescein is added as a colorant to the alcohol filling the tube in order to increase the visibility of the air bubble contained within (thus enhancing the precision of the instrument). More concentrated solutions of fluorescein can even appear red.
Specification:
|
Item |
Specification |
|
maximum absorption wavelength, λ(PH8.0), nm |
490-493 |
|
mass absorption coefficient, λ(PH8.0),L/(cm·g) ≥ |
200 |
|
Solubility in ethanol |
Pass |
|
sensitivity test |
Pass |
|
loss on drying, % ≤ |
5 |
|
Burning residue (in sulfate), % ≤ |
0.3 |
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