490 SEC. 13. CHEMISTRY. 



XI. 



a Bromocoumarin C 9 H 5 BrO 2 = C 6 H 4 { Q HBr | CO. 



8 Bromocoumarin C 9 H 5 Br0 2 = C 6 H 3 Br { Q H } CO. 

 a Dibromocoumarin C 9 H 4 Br 2 O 2 = C 6 H 3 Br j Q aHBr } CO. 



j8 Dibromocoumarin C 9 H 4 Br 2 O 2 = C 6 H 2 Br 2 { Q H } CO. 



a Chlorocoumarin C 9 H 5 C1O 2 = C 6 H 4 { ^ HC1 j CO. 



Tetrachlorocoumarin C 9 H 2 C1 4 2 . 



Coumarilic acid C 9 H 6 O 3 = C 6 H 4 1 Q 2H(OH) } CO. 



Potassic coumarilate C 9 H 5 KO 3 = C 6 H 4 1 ^ H /Q K N } CO. 



Sulphocoumarilic acid C 9 H 6 O 2 SO 3 2H 2 0. 

 Baric Sulphocoumarilic C 18 H 10 Ba0 4 S 2 6 =5H 2 O. 

 Baric disulphocoumarilic acid C 9 H 4 BaO 2 S 2 O 6 H 2 0. 

 Bromopropionic coumarin C 10 H 7 BrO 2 . 



XII. 



Chlorinated chloride of methyl, dichloride of methylene 



XIII. 



Anthracene C 14 H 10 . 

 Dichloranthracene C 14 H 8 C1 2 . 

 Dibromanthracene C 14 H 8 Br 2 . 

 Dichloranthracene combined with picric acid C 14 H 8 C1 2 C 6 H 3 (N0 2 )30. 



Sodic disulphodichloranthracenate C 14 H 6 C1 2 | ^^Q 3 - 



Baric disulphodichloranthracenate C 14 H 6 Cl 2 Ba2SO 3 . 

 Strontic disulphodichloranthracenate C 14 H 6 Cl 2 Sr2S0 3 . 

 Baric disulphodibromanthracenate C 14 H 6 Br 2 Ba2SO 3 . 

 Anthraquinone C 14 H 8 O 2 . 

 Baric disulphanthraquinonate C 14 H 6 O 2 Ba2SO 3 . 



XIV. 

 Artificial alizarin C 14 H 8 O 4 = C 6 H 4 1 | C 6 H 2 (OH) 2 . 



Acetyl alizarin = C 16 H 10 5 =C 6 H 4 { ^}C 6 H 2 { g^ y 

 Diacetyl alizarin = C 18 H 12 O 6 = C 6 H 4 { ^ j CgH^O Ac) 2 . 



XV. 



Bromalizarin C 14 H 7 BrO 4 = C 6 H 4 C 6 HBr(OH) 2 . 



Diacetylbromalizariu C 13 H u Br0 6 = C 6 H 4 C 6 HBr(OAc 2 .) 



