Specification
Product Name CHROMOTROPE FB
Synonyms Disodium 2-(4-sulfo-1-naphthylazo)-1-naphthol
-4-sulfonate.
C.I. NO. 14720
CAS NO. 3567-69-9
Molecular Formula C20H12N2Na2O7S2
Formula Weight 502.43
Appearance Dark Red to Brown to Black powder
Structure
   
Tests    Limits
UV-Visible Spectrum

- 0.03 G/L, H2OE
(516 +/- 3NM) = >14,500
E (323 +/- 3NM) = >9,000
E (217 +/- 3NM) = >33,000

   
   
REVISED: 1-1-2012  
 
 
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