Certain Neiv Derivafive.s in the Aromatic Series. ITY 



IXDOPHENOLS. 



Lidophenol. Nitrosodiniethylaniline and alpha-naphtol. 



OXAZINE AND ThIAZINE DyES. 



Gallocyanine. Nitrosodimethylaniline and gallic or tannic acid. 

 Fast Black. jS'itrosodimethjlauiline and m-ox3-diphenylamine. 

 Methylene Blue. From p-Amidodimethylaniline and dimethyl- 

 aniline. 



Toluidine Blue. From p-Aniidodimethylaniline and o-toluidine. 



Safranines. 



Safranine. Oxidation of p-Toluylendiamine, Aniline and o-Tolu- 

 dine. 



Indulines and Xigrosines. 



Nigrosine. Action of H.,SO^ on Indulines ; latter from amido- 

 azobenzene heated with aniline. 



Paraphenylenhlue E. Phenylendiamine on amidoazobenzene. 



Artificial Indigo. 



Indigo Salt. Bisulfite compound of o-nitro-phenyl-lactic acid 

 niethyl-ketone. 



Crinoline Dyes. 

 Ghinolin Yellow. Chinaldin and phthalic acid anhydride. 



Acridine Dyes. 

 Phosphine. Bye-product in manufacture of Magenta. 



Thio-Benzyl Dyes. 



Primuline. p-toluidine heated with S., and sulfuring the pro- 

 duct. 



Dyes of Unknown Constitution. 



New Gray. Boiling nitrosodimethylaniline with H^O or CjH.OH. 

 Aniline Black. Oxidation of aniline with chlorates, ehromates 

 or copper salts. 



