Specification
Product Name METHYL RED
Synonyms [2-[4-(Dimethylamino)phenyl azo] Benzoic Acid]
CAS NO. 493-52-7
C. I. No. 13020
Molecular Formula C15H15N3O2
Formula Weight 269.31
Appearance Red Powder
Structure
   
Tests    Limits
Solubility 0.1% (EtOH)

- Red Solution

Absorptivity 1%/1cm,
(pH 6.2) at max.430.0 nm
(pH 4.2) at max.527.0 nm

- 700-800

- 1300-1400

Loss On Drying at 110ºC (1hr)

- < 3%

   
   
REVISED: 1-1-2012  
 
 
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