II. - RESEARCH. 589 



XI. 



a Bromocoumarin C 9 H 5 BrO 2 =C 6 H 4 < Q gjj r fCO. 

 J3 Bromocoumarin C 9 H 5 BrO 2 = C 6 H 3 Br / j CO. 

 a Dibromocoumarin C 9 H 4 Br 2 O 2 =C 6 H 3 Br{ c 2 HBr} CO ' 

 $ Dibromocoumarin C 9 H 4 Br 2 O 2 = C 6 H 2 Br 2 { j CO. 



a Chlorocoumarin C 9 H 5 C1O 2 = C 6 H 4 { $ HC1 } CO. 



Tetrachlorocoumarin C 9 H 2 C1 4 O 2 . 



Coumarilic acid C 9 H 6 3 = C 6 H 4 1 ^ H /QJJN } CO. 



Potassic coumarilateC 9 H 5 KO 3 = C 6 H 4 j ^ H /Q K \ |CO. 



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

 Baric sulphocoumarilate C 18 H 10 BaO 4 S 2 O 6 =5H 2 O. 

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

 Bromopropiouic coumarin C 10 H 7 BrO 2 . 



XII. 



Chlorinated chloride of methyl, dichloride of methylene CH S C1 2 . 



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 ) 3 O. 



Sodic disulphodichloranthracenate C 14 H 6 C1 2 | ^SO 3 ' 

 Baric disulphodichloranthracenate C 14 H 6 Cl 2 Ba2SO 3 . 

 Strontic disulphodichloranthracenate C 14 H 6 Cl 2 Sr2SO 3 . 

 Baric disulphodibromanthracenate C 14 H 6 Br 2 Ba2SO 3 . 

 Anthraquinone C 14 H 8 O 2 . 

 Baric disulphanthraquiuonate C 14 H 6 O 2 Ba2SO 3 . 



XIV. 

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



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

 Diacetyl alizarin = C 18 H 12 6 = C 6 H 4 { ^O } C 6 H 2 (0 Ac) 2 . 



XV. 



Bromalizarin C 14 H-Rr0 4 = C 6 H 4 C 6 HBr(OH) 2 . 



Diacetylbromalizarin C ls H n Br0 6 = C 6 H 4 C 6 HBr(OAc 2 ). 



