AnA^st,Pi88a9:m'}    Crystalline  Compound  of  Fabiana  Imbricata.  407 
Recently  an  analysis  has  been  made  by  MM.  Niviere  and  Liotard,1 
who  found  the  fluorescent  glucoside,  but  failed  to  notice  the  neutral 
crystalline  compound  in  the  ethereal  extract  as  above  described,  or  to 
detect  any  trace  of  alkaloid.  For  additional  investigation  of  this 
neutral  principle  see  the  following  paper. 
ON  A  CRYSTALLINE  COMPOUND  IN  FABIANA  IM- 
BRICATA. 
By  Henry  Trimble  and  Hermann  J.  M.  Schroeter. 
Contribution  from  the  Chemical  Laboratory  of  the  Philadelphia  College  of 
Pharmacy. — No.  59. 
Both  the  glucoside  and  the  crystalline  compound,  rich  in  carbon, 
mentioned  in  the  preceding  paper,  are  worthy  of  further  investigation. 
The  present  contribution  details  our  results  on  the  latter  compound. 
In  this  work  we  were  greatly  aided  by  Messrs.  Parke,  Davis  and  Co. 
of  Detroit,  who  sent  us  a  sediment  which  had  separated  from  300 
pounds  of  the  fluid  extract  of  pichi.  This  sediment  appeared  to  be 
largely  made  up  of  this  compound  mixed  with  woody  fibre. 
A  quantity  was  dried  at  70°C,  the  residue  powdered  and  macerated 
with  petroleum  ether.  This  solvent  removed  a  small  quantity  of  a 
wax-like  substance.  The  residue  was  then  extracted  with  successive 
portions  of  stronger  ether,  which  dissolved  a  large  proportion  of  it. 
The  several  ethereal  extractions  were  kept  separate,  as  it  was  thought 
there  might  be  more  than  one  compound  present  and  they  might  be 
partly  separated  by  this  means. 
The  different  lots  were  purified  by  recovering  the  ether,  dissolving  the 
residue  in  hot  95  per  cent,  alcohol,  decolorizing  with  animal  charcoal 
and  recrystallizing  from  hot  alcohol,  until  pure  white,  somewhat  silky, 
acicular  crystals  were  obtained.  In  physical  properties  the  different 
portions  appeared  identical.  The  crystals  turned  brown  at  240°  C. 
and  commenced  to  decompose  without  melting  at  270°  C. 
A  combustion  gave  the  following  results.  0*1939  gram  substance 
gave  0-5515  C02  and  0*190  H20.  corresponding  to 
C,  77*57  per  cent. 
H,  10*89 
O,  11*54 
100*00 
1  Jour,  de  Pharm.  et  de  Chimie,  xvi,  p.  389. 
