II. RESEARCH. 587 



II. 



CO(OH) 

 Bromacetic acid C 2 H 3 BrO 2 = | 



CH 2 Br 



CO(OEt) 

 ether C 4 H 7 Br0 2 = j 



CH 2 Br. 



(Perkin and Duppa.) 



III. 



CO(OH) 

 Dibromacetic acid C 2 H 2 Br 2 O 2 I 



CHBr 2 



CO-NH 2 

 Dibromacetamide C 2 H 3 Br 2 NO= | 



CHBr,. 



(Perkin and Duppa.) 



IV. 



CO (OH) 



Dibromosuccinic acid C 4 H 4 Br 2 O 4 =C 2 H 2 Br 2 prepared from the chloride 



CO (OH) 

 of dibromosuccinyl. 



CO(OH) 



Tartaric acid (inactive) C 4 H 6 O 6 ,H 2 = C 2 H 2 (OH) 2 obtained by boiling 



CO(OH) 

 argentic dibromosuccinate with water. (Perkin and Duppa.) 



V. 



r(c 10 H 7 ) 2 )-| 



Azodinaphthyldiamin C 20 H 15 N 3 = j N'" ^N 2 . 



(Perkin and Church.) 



VI. * 



Mauveine 



hydrochlorate 



sulphate (C 27 H 24 N 4 ) 2 H 2 S0 4 . 



nitrate 

 " hydriodate 



carbonate 



Diacetotartaric ether 



CO(OEt). 

 Diacetoparatartaric ether do. do. 



