APPENDIX. 



379 



AROMATIC SERIES. 



Relation to the Decomposition Products op Albumin. 



Oxyphenylacetic Acid. 



an 



OH 



'e'^^CHa-COOH. 



Putrefactive product of 

 tyrosiu ; normal uri- 

 nary constituent. When 

 given to an animal, it 

 leaves the organism un- 

 changed. 



Phenylacetic Acid. 



C6H5.CH2.COOH. 



Putrefactive product of 

 phenylamidoproplonic 

 acid and of albumin, 

 passes into the urine as 



Phenaceturic acid. 



an..CH2.C0.NH.CH2 

 COOU. 



Parakresol. 

 err OB. 



Putrefactive product of 

 ty rosin ; occurs in urine 

 as 



P TT CHo 



IndoL 

 CH-CH 



Obtained from albumin 

 by putrefaction, and 

 heating with caustic 

 potash. 



In the organism it is oxi- 

 dised to 



IndoxyL 

 C(OH)-CH 



NH' 

 Passes into the urine as 



, Indoxylsulphuric acid. 

 C(0.S03H)-CB 



NH' 



Phenol. 



C«H..OH. 



Putrefactive product of 

 tyrosin ; occurs in urine 

 as 



CgHg.OSOaOH. 



In the organism, it is 

 partly oxidised into 



Pyrocatechin. 



p ttOH 



'"«"*0H 



which occurs as a con- 

 stituent of horses' urine, 

 partly as an ether 

 sulpho-compound, and 

 partly free. 



C6H4<( 



Skatol. 

 C(CH3) = CH 



Putrefactive product of 

 albumin, passes into the 

 urine as 



(Skatoxylsulphuric acid). 

 C(CH3.0.SOaOH)=CH 



NH 



