132 



COAL-TAR COLORS USED IN FOOD PRODUCTS. 



Experimental data by Chlopin. 



No. l. 

 [1 gram= 143 mg= 100 grains.] 



No. 2. 

 [1 gram=116 mg=81 grains.] 



G. T. 527. 



Trade names. Coerulein S; Alizarin Green; Anthracene Green. 

 Scientific name. Sodium bisulphite compound of ccerulein. 

 Discovered. 1870. 

 Shade. Black. Not offered. 



FAVORABLE. 



1. CHLOPIN (pp. 186-7} examined this color, and on his own experiments reports it as 

 " nonpoisonous, and not sufficient data to regard it as suspicious." The exper- 

 imental data are as follows: 



Experimental data by Chlopin. 



No. 1. 

 [1 gram=147 mg=103 grains.] 



