122 



COAL-TAR COLORS USED IN FOOD PRODUCTS. 



UNFAVORABLE. 



I. WEYL (p. 23} , quoting Friedrich, where poisoning was produced in a young man 

 engaged in packing this dye. 



G. T. 459. 



Trade names. lodin Green; Pomona Green; Night Green; Vert 

 Lumiere. 



Scientific name. Zinc-double-chlorid of heptamethyl-rosanilin- 

 chlorid. 



Discovered and patented. 1866. 



Shade. Green. Not offered. 



Nothing. 



FAVORABLE. 



UNFAVORABLE. 



1. CHLOPIN (p. 175} on his own experiments classes it as "suspicious." (See p. 181). 

 The experimental data are as follows: 



Experimental data by Chlopin. 

 [1 gram=167 mg=117 grains.] 



2. Buss lists it as poisonous. 



DOUBTFUL. 



1. WINOGRADOW (Zts. Nahr. Genussm., 1903, v. 6, p. 589} says it noticeably retards 

 digestive action; is not indifferent. 



G. T. 462. 



Trade names. Acid Magenta; Acid Fuchsin; Acid Rubin; Fuch- 

 sin S; Acid Rosein; Rubin S. 



Names under which it was offered on the United States market as a 

 food color in 1907. Acid Magenta Powdered; Acid Magenta. 



Scientific name. Mixture of the sodium or ammonium salts of the 

 trisulphonic acids of rosanilin and pararosanilin. 



Discovered. 1877. 



Shade. Red. Offered by 2 out of 12 sources. 



