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Uranine Acid Yellow 73 EINECS 208-253-0
Fluorescein Sodium
Synonyms |
Fluorescein disodium salt; Acid Yellow 73; C.I. 45350; Disodium 2-(3-oxo-6-oxidoxanthen-9-yl)benzoate; Uranine
|
Molecular Formula |
C20H12O5.2Na
|
Molecular Weight |
376.27
|
CAS No |
518-47-8
|
EINECS |
208-253-0 |
|
|
Melting point |
320 ºC
|
Water solubility |
500 g/L (20 ºC)
|
Appearance |
Orange powder
|
Character |
Odorless; Deliquescence; Easy to dissolve in water, the solution is red Slight soluble in ethanol
|
Purity |
90% min.
|
H2O |
7% max. |
|
|
Packing |
25kg/drum
|
Application |
Indicator |
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