Phenyl Methane Dyes 



175 



Pl5 



Synonyms : Wool green BS, BSNA or C. Lissamine g 

 Pontacyl green S. Calcoid green S extra. Acid green 



green B. Fast light green. 



c. I. NO. 737 



WOOL GREEN S y.. x. x-nw. /^/ 



BS, BSNA or C. Lissamine green By BS. 

 i green 8 extra. Add green S. Cyanol 



NaSOs 

 C27H25N207S2Na; Mol. Wt. 576.603 



(An acid dye; absorption maximum 63 Ji) 



This dye has been mentioned by Lillie (1940, 1945) as a satis- 

 factory substitute for fast green FCF in his modification of the 

 Masson trichrome stain. 



For use in Lillie modification of Masson trichrome stain, see Staining Procedures, 

 p. IB3-I9. 



