Alizarin

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
Alizarin
Alizarin

58000
Mordant red 11
Pigment red 83
Anthraquinone
Acid
Sparingly at boiling.
Soluble in alkalis.
0.125%
601, 567 (Conn)
609, 567 (Aldrich)
533 (Gurr)

C14H8O4
240.2

Alizarin is found in the roots of the madder plant (Rubia tinctorum L.), and was used as a dye in ancient times in Egypt, Persia and India. It is only rarely used in microtechnique, although it has been suggested for demonstrating some metals, with which it forms coloured lakes.

 

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

Aldrich chemical catalogue, 1992
Aldrich Chemical Company, Milwaukee, WI, USA.

Edward Gurr, (1971)
Synthetic dyes in biology, medicine and chemistry
Academic Press, London, England.

Susan Budavari, Editor, (1996)
The Merck Index, Ed. 12
Merck & Co., Inc., Whitehouse Station, NJ, USA

 


 

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