Fluorescein Powder CAS 2321-07-5
Fluorescein is a manufactured organic compound and dye. It is available as a dark orange/red powder slightly soluble in water and alcohol.
Description
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Product Description
Product Name: Fluorescein
Synonyms：Fluorescein
Quality Standard: Ind Grade
Molecular Formula: C20H12O5
Molecular Weight: 332.31
CAS No.: 2321-07-5
Product Name: Fluorescein Disodium Salt
Synonyms：Fluorescein Sodium
Quality Standard: Ind Grade
Molecular Formula: C20H10Na20
Molecular Mass: 376.28
CAS No.: 518-47-8
Specification
Fluorescein
|
Item Name: |
Ind Grade |
|
Maximal absorption wavelength λ(PH8.0),nm |
490-493 |
|
Quality absorption coefficient λ(PH8.0),L/(cm•g) |
≥200 |
|
Solubility in alcohol |
Passes test |
|
Sulfated ash,percent |
≤0.3 |
|
Loss on drying, percent |
≤5.0 |
|
Sensitivity test |
Passes test |
Fluorescein Disodium Salt
|
Item Name: |
Ind Grade |
|
Solubility in water |
Passes test |
|
Biological stain |
Passes test |
|
Water, percent |
≤7.0 |
|
Sensitivity test for bromine |
Passes test |
Application
Package
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