Thioflavine S

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	Thioflavine S Thioflavine S – 49010 Direct yellow 7 Thiazole Acid Very Soluble 374 Yellow – –

Neither the structural nor the empirical formulae of thioflavine S are given by Conn, nor Aldrich. Conn states that thioflavine S is made from primuline by methylation and sulphonation. It is a fluorescent dye, a mixture, one component of which appears to demonstrate amyloid.

 

Reference
R. D. Lillie.
Conn's Biological Stains
Williams & Wilkins, Baltimore, MD., U.S.A.