188 
ChlorophylL 
f  Am.  Jonr.  Pharm 
I      April,  1882. 
Phylloeyaniii,  which  really  includes  several  different  bodies  of  a 
very  similar  nature,  is  a  dark  green,  almost  black,  mass,  which  is 
insoluble  in  water,  only  sparingly  soluble  in  benzin,  and  however  pre- 
pared, is  always  nitrogenous.  It  may  be  separated  into  three  different 
substances  by  treatment  with  hot  alcohol.  These  gave  the  following 
composition  on  analysis : 
c.  H.  N. 
A.  Insoluble  in  alcohol,       .  .    67-66-67-77       8'03-8-41  5-46-5-92 
B.  Difficultly  soluble  in  alcohol,  .         69-32-69-71      6-75-7-30  8-24-8'56 
C.  Easily  soluble  in  alcohol,  .    69-14-69-70      7-45-7'60  7-08-7-30 
On  oxidation  with  2)otassium  permanganate  in  alkaline  solution, 
phyllocyanin  gives  ammonia,  oxalic,  palmitic,  and  probably  lactic, 
acetic,  and  three  other  acids,  which  appear  to  be  nearly  related  to  or 
identical  with  itaconic,  citraconic,  and  mesaconic  acids. 
On  dry  distillation  under  diminished  pressure,  phyllocyanin  gives 
palmitic  aldehyd;  whilst  on  dry  distillation  with  lime  it  gives  palmi- 
tone,  CsiHggO,  or  possibly  stearin ;  on  treatment  with  bromine  in  aqueous 
solution,  it  is  decomposed  into  ammonia,  and,  at  least,  three  other 
bodies,  one  of  which  is  easily  soluble  in  benzin ;  the  second  insoluble 
in  benzin,  but  easily  soluble  in  alcohol ;  and  the  third  insoluble  in 
either  solvent. 
In  the  solid  state  the  yellow  coloring  matter  A,  referred  to  above, 
forms  a  mass  varying  in  color  from  brown  to  yellow,  or  reddish  yellow, 
of  a  fatty  nature,  always  free  from  nitrogen,  and  varying  in  composition 
between  65'88  to  70-90  per  cent.  C,  7-91  to  9*80  H,  and  26-21  to  19-30 
per  cent.  O.  Two  other  coloring  matters  of  a  pale  yellow  were  also 
obtained,  although  it  is  very  doubtful  whether  these  latter  were  derived 
from  the  chlorophyll,  or  only  admixed  impurity;  one  of  them  had  a 
composition  represented  by  the  formula  020^52^2-  The  author  con- 
siders the  yellow  coloring  matter  as  the  connecting  link  between  the 
green  coloring  matters  and  the  true  fats,  and  is  also  of  opinion  that 
several  modifications  of  chlorophyll  exist,  and  that  each  chloroj^hyll 
contains  a  phyllocyanin,  a  yellow  coloring  matter,  and  a  body  nearly 
related  to  the  carbohydrates. — Jour.  Chem,  Soc.^  January,  1882,  from 
Chem.  Centr.,  1881. 
