82 



COAL-TAR COLORS USED IN FOOD PRODUCTS. 



4. FRAENKEL (p. 575): "The coloring matter called Aurantia, which is a salt ol 



hexanitro-diphenylamin, appears to be poisonous on account of the nitro groups, 

 which is on the other hand denied by a few observers. " 



5. Resolutions of the Swiss Analytical Chemists, September, 1891: "The following are 



to be regarded as coloring matters harmful to health * * * Aurantia 

 # * * 



6. Forbidden by the Canton of Tessin. 



7. LEWIN (Lehrbuch der Toxikologie, 1897, p. 232): "Aurantia has a poisonous action. 



After wearing gloves for 8 hours made with so-called dogskin, which were col- 

 ored with Aurantia, a man suffered confluent blisters, accompanied by itching. 

 The workmen with this material get blisters on the face and on the hands. 

 Perspiration increases the tendency to such blisters. " 



8. Buss lists it as poisonous. 



G. T. 8. 



Trade names. Acid 1 Yellow; Fast Yellow G; Acid Yellow G; Fast 

 Yellow; Fast Yellow extra; Jaune Acide; New Yellow L. 



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

 food color in ^ W. Fast Yellow Y; Fast Yellow G; Acid Yellow G 

 pat.; Fast Yellow 053. 



Scientific name. Amidoazobenzene-disulphonate with some sodium 

 amidoazobenzene-monosulphonate. 



Discovered. 1878. 



Shade. Yellow. Offered by 5 out of 12 sources. 



FAVORABLE. 



1. Permitted by Confectioners' List. 



2. CAZENEUVE AND LEPINE (Bull, de Vacad. de med., April 27, 1886, p. 643), where 



it is classified among the "nontoxic " colors. 



3. FRAENKEL (p. 575), where it is stated to be nonpoisonous. 



4. Permitted by the law of Austria. 



UNFAVORABLE. 



1. WEYL (p. 115): "Poisonous to human beings. (?) " 



2. CHLOPIN (p. 151) considers that the work of others makes this a suspicious color. 



His own experimental data are as follows: 



Experimental data by Chlopin. 



G. T. 8 AND 9. 

 [1 gram=152 mg=106 grains.] 



Conclusion: "Suspicious." 



