Guinee Green B

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
Guinee green
Guinee green B

42085
Acid green 3
Triarylmethane
Acid
3% (Aldrich)
Readily (Gurr)
0.9% (Aldrich)
Readily (Gurr)
618
Green
C37H35N2O6S2Na2
713.8

Guinee green is an acid dye that is occasionally mentioned as a replacement for light green SF in Masson's trichrome. The dye's major drawback is that it fades. A substitute which is less prone to fading is Fast green FCF, a closely related dye.

In the past this dye was used as a food colouring, but is no longer approved for that purpose in the United States.

Compare the formula to Fast green FCF and Light green SF yellowish.

 

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

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

Floyd J. Green, (1990)
The Sigma Aldrich Handbook of Stains, Dyes and Indicators
Aldrich Chemical Co., Milwaukee, WI, USA.

 


 

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