THE  AMERICAN 
JOURNAL  OF  PHARMACY 
OCTOBER,  1893. 
SUMBUL  RESIN.  ^ 
By  Philip  H.  Utech,  Ph.G. 
Contribution  from  the  Chemical  Laboratory  of  the  Philadelphia  College  of  Pharmacy. 
No.  128. 
In  the  preparation  of  this  resin  1,000  grams  of  the  root  were 
taken,  and  reduced  to  a  coarse  (No.  20)  powder.  It  was  then  mac- 
erated, first  in  water,  and  subsequently  in  a  solution  of  sodium  car- 
bonate, after  which  it  was  again  washed  with  cold  water,  and  allowed 
to  dry  at  a  temperature  of  150  C. 
During  this  operation  the  drug  lost  42  per  cent,  of  its  weight, 
consisting  largely  of  extractive  matter,  albuminoids,  etc.  A  second 
portion  was  experimented  on  with  approximately  the  same  results. 
The  drug  was  then  percolated  with  alcohol,  and  the  resulting 
tincture  agitated  with  lime  and  filtered.  A  little  sulphuric  acid  was 
added  to  decompose  the  lime,  and  the  tincture  then  agitated  for 
some  time  in  contact  with  animal  charcoal,  and  again  filtered. 
The  alcohol  was  recovered  by  distillation,  and  the  residue  poured 
into  water.  There  was  precipitated  a  soft,  whitish,  translucent 
resin,  which  on  drying  in  an  air  bath  at  1  io°  C,  yielded  a  clear, 
transparent,  amber-colored  product,  having  a  bitter  taste,  and  pos- 
sessing the  aromatic  odor  of  the  root.    The  yield  was  6- 1  per  cent. 
This  resin  was  completely  soluble  in  chloroform,  ether,  carbon 
disulphide,  acetone,  benzol  and  acetic  ether ;  but  only  partly  dis- 
solved by  petroleum  ether,  and  36  per  cent,  acetic  acid.  It  was 
almost  insoluble  in  solution  of  ammonia. 
On  igniting  4  grams  of  the  resin  on  platinum,  it  burned  with  a 
sooty  flame,  and  left  50  milligrams  of  ash. 
(465^ 
