Fluorescein
2017-12-16 23:32 Visit:108
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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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