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.
Reference
Colour Index, Ed. 2. (1956)
Society of dyers and colourists, UK.
Anatech internet page
http://www.anatechltdusa.com/Innovators/6_InnDyes.html
