contained in Cool-gas Naphtha. 205 



emerge from the decomposition of numerous and most various 

 compounds. 



In like manner cyanol will most probably be found in the 

 products obtained by submitting a still greater number of or- 

 ganic substances to destructive changes. 



I have not at present recognized cyanol in animal tar oil 

 {Oleum animate, Dippelii), in which Unverdorben discovered 

 a series of bases, of which little is known. 



The simultaneous occurrence of cyanol and carbolic acid 

 in the products of the distillation of coal, and the production 

 of chlorophenissic, chlorophenussic, and carbazotic acids from 

 these bodies, led me to institute a comparison between them. 

 Their mutual relations are manifested in the two following 

 formulas. U, with Laurent, we regard carbolic acid as the 

 hydrate of an oxygen compound of an organic radical C 12 H 5 , 

 cyanol may be considered as an amide compound of the same 

 radical, and we thus obtain the following series: — 

 Hypothetic radical . . . . C 12 H 5 Phen. 



Carbolic acid C„H- + HO| Hyd T ?, the 



u ° I. oxide of phen. 



Chlorindoptic acid . . . . cJ^f O + HO/CMorophenissic 

 Chlorated chlorindoptic acid. C u Cl 5 , O + HO { Chjorophenussic 



*iiiiii c 12 {^ 04)> 0+H o{ N ir nissic 



Cyanol C 12 H 5 +NH 2 Phenamide. 



I have attempted to produce cyanol from carbolic acid, but 

 without success. This acid absorbs ammonia with great 

 avidity, but no decomposition takes place. I was not more 

 fortunate in my attempts to procure carbolic aether. I thought 

 there was a possibility of preparing phenamide in a manner 

 similar to that in which oxamide and fumarimide are formed, 

 from the corresponding ethyle compounds by means of am- 

 monia. 



In conclusion, I shall make a few remarks upon the names 

 of this base, there being a choice of four. The name cyanol 

 should on all accounts be discarded, not only because it is 

 formed from two languages (xvuveog and oleum), but also on 

 account of the accentuated Greek adjective being already em- 

 ployed in chemistry to designate another body. The terms 

 aniline and benzidam have reference to the relation of the base 

 to certain classes of combinations. But since it is formed, as 

 we now know, in different ways, it is perhaps better to retain 

 the old name crystalline, derived from a very characteristic 

 property of this body, until experiments place the scientific 

 name, phenamide, on a firmer foundation. 

 [To be continued.] 



