Benzo Scarlet 4BNS

Benzo scarlet 4BNS
Property Data
Common name
Suggested name
Other names
 
C.I. number
C.I. name
Class
Ionisation
Solubility aqueous
Solubility ethanol
Absorption maximum
Colour
Empirical formula
Formula weight
Benzo scarlet 4BNS
Benzo scarlet 4BNS
Benzo fast scarlet 4BEN
Amyloid red
29200
Direct red 72
Azo
Acid
Soluble
Very slightly soluble

Red
C38H25N6O12S3Na3
922.80

Benzo scarlet 4BNS is a direct cotton dye. Many dyes of that type are capable of hydrogen bonding to amyloid. Only a few are capable of doing so and also giving a dark enough red colour and the green birefringence necessary for them to be useful in diagnostic histology.

The dye is reportedly as effective as Congo red and Sirius red F3B, giving a distinctly darker red than Congo red.

The name Amyloid red is used by a particular sales company for marketing purposes.

Compare this dye to other direct cotton dyes for amyloid.

Reference
Colour Index, Ed. 2. (1956)
Society of dyers and colourists, UK.

Anatech internet page
http://www.anatechltdusa.com/Innovators/6_InnDyes.html

 


 

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