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PONCEAU S sodium salt, Certified

PONCEAU S sodium salt, Certified

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CERTIFICATE OF ANALYSIS

 

Name Of Item : PONCEAU S (M.S.)

 

Formula : C22H12N4Na4O13S4

 

(C.I. No. 27195 ) (for electrophoresis)

Batch No. : P0354

 

M.W. : 760.56

 

 

CAS NO. :  6226-79-5

 

 

Cat. No. : AL3635 00100

 



 

 

 

 

 

 

 

 

 

 

 

Type Of Test

Standard

 

Observed

 

 

 

 

 

 

Description

A dark red crystalline powder

 

A dark red crystalline powder

 

 

 

 

 

 

Dye content

(Min.) 80%

 

80.29%

 

Absorption maximum

 

 

 

 

(in water)

517-523 nm

 

518 nm

 

TLC test

Passes test

 

Passes test

 

Loss on drying at 110°C

<10%

 

8.1%

 

Suitability for microscopy

Passes test

 

Passes test

 

 

 

 

 

 

 

Results : The above product complies with LR grade