Factory Supply Fluorescein with Good Quality CAS 2321-07-5 Tetraoxyphthalophenone Anhydride

Model NO.
b xyy 2321-07-5
MW
332.31
Transport Package
Bag
Specification
25kg
Trademark
Future Chemical
Origin
China
Production Capacity
1000ton
Reference Price
$ 18.00 - 45.00
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Product Description

Product Description

Factory price fluorescein with powder dye cas 2321-07-5

 

 

Fluorescein Basic information  
Product Name: Fluorescein
CAS: 2321/7/5
MF: C20H12O5
MW: 332.31
EINECS: 219-031-8
Fluorescein Chemical Properties  
Melting point  320 °C(lit.)
Boiling point  429.44°C (rough estimate)
density  1.2739 (rough estimate)
refractive index  1.5000 (estimate)
storage temp.  −20°C
solubility  Solubility Insoluble in water, ether, benzene, chloroform; soluble in ethanol, methanol, acetone, Iethyl acetate, N,N-dimethylformamide
Colour Index  45350
form  Powder
pka 2.2, 4.4, 6.7(at 25ºC)
color  Red to orange
PH Range Pink uorescence (4.0) to green uorescence (6.0)
Water Solubility  insoluble
λmax 493.5nm, 496nm, 460nm, 515nm
Merck  144,159
BRN  94324
 
Item Specification
maximum absorption wavelength, λ(PH8.0), nm 490-493
mass absorption coefficient, λ(PH8.0),L/(cm·g)   ≥ 200
Solubility in ethanol Pass
sensitivity test Pass
loss on drying, %      ≤ 5
Burning residue (in sulfate),  %      ≤ 0.3
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Factory Supply Fluorescein with Good Quality CAS 2321-07-5 Tetraoxyphthalophenone Anhydride

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Factory Supply Fluorescein with Good Quality CAS 2321-07-5 Tetraoxyphthalophenone Anhydride

 

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Factory Supply Fluorescein with Good Quality CAS 2321-07-5 Tetraoxyphthalophenone Anhydride

Factory Supply Fluorescein with Good Quality CAS 2321-07-5 Tetraoxyphthalophenone Anhydride

 

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