OM SHREE GANESHYA NAMAH

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Product Name

 FLUORESCEIN (FOR MICROSCOPY) (C.I. NO. 45350)

Article No

 F0100100100

CAS No

 2321-07-5

Molecular Formula

 C20H12O5

Molecular Weight

 332.31

Specifications

Appearance:

 Orange red brown or maroon powder

Loss on drying (at 105°C) :

 Max 5.0%

Assay (on anhydrous basis):

 Min 95%

Molar absorptivity E(238+/-2nm):

 Min 39000

Molar absorptivity E(284+/-2nm):

 Min 12000

Molar absorptivity E(490+/-2nm):

 Min 70000

Solubility (in 1N NaOH):

 50 mg/ml

Melting point:

 About 315 °C