C20H12O5

Molecular Weight:
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Chemical Reagents
Fluorescein
2017-12-28 14:33  Visit:109
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Product name: Fluorescein
CAS NO.: 2321-7-5
Molecular formula:

C20H12O5
Molecular Weight: 332.31
Properties:

Orange or red powder, solve in hot alcohol, acetic acid and lye, insolve in water.
Specification (HG/T 3494-1999)
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
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