142  Progress  in  Pharmacy.  {AmMirch,i908rm' 
Corchorin  belongs  to  the  digitalis  group  of  medicaments  and  is 
closely  related  to  andromedotoxin. 
Me tadinitro benzol  as  a  Reagent  for  Sugar. — The  reagent  consists 
of  I  gm.  of  metadinitrobenzol  dissolved  in  100  c.c.  of  alcohol  and  35 
c.c.  of  a  33  per  cent,  soda  solution  ;  10  c.c.  of  this  solution,  when  mixed 
with  a  1  per  cent,  solution  of  maltose,  dextrose,  lactose,  galactose  or 
arabinose  gives  a  violet  color  in  one  minute,  and  with  levulose  in  two 
minutes.  Saccharose  and  glycogen  produce  no  color.  Aldehydes 
and  ketones  produce  a  red  color  and  albumen,  albumose,  amido- 
acids,  urea  and  keratin  give  a  yellow  coloration.  (Pharm.  Ze7i?h.y  1907, 
page  994). 
Methylencitrylsalicylic  acid  is  said  to  be  produced  by  interaction 
between  salicylic  acid  or  salicylates  and  the  dihalogens  of  methy- 
lencitric  acid.  The  resulting  substance  is  tasteless  and  nonirritating, 
and  in  this  respect  is  said  to  be  superior  to  acetylsalicylic  acid.  It 
is  decomposed  in  the  alkaline  secretions  of  the  intestines,  liberating, 
in  addition  to  salicylic  acid,  a  small  proportion  of  formaldehyde.  It 
is  said  to  be  particularly  useful  in  cases  of  rheumatism.  {Pharm. 
Zenfh.,  1907,  page  956.) 
Morphine -brom  ?nethylate  is  produced  by  treating  morphine  with 
dimethyl  sulphate,  dissolving  the  resulting  addition  product  in 
water  and  converting  the  same  with  a  saturated  solution  of  potas- 
sium bromide,  which  also  acts  as  a  precipitant  for  the  resulting 
morphin-brom-methylate.  The  latter  is  then  purified  by  recrystalliz- 
ing  from  a  solution  in  warm  water.  Morphin-brom-methylate  occurs 
as  white,  needle-shaped  crystals  that  decompose  and  melt  at  from 
2650  to  2660  C. 
It  is  readily  soluble  in  hot  water,  and  at  150  C.  is  soluble  in  the 
proportion  of  1  in  20  of  water.  It  is  but  slightly  or  not  at  all  soluble 
in  alcohol,  ether  or  chloroform.  Its  uses  are  the  same  as  morphine. 
[Pharm.  Zenfh.,  1907,  page  960.) 
Paralysol  is  the  name  given  to  a  cresol  soap  preparation  that  is 
being  marketed  in  the  form  of  tablets. 
F.  Zernik  has  recently  examined  these  tablets  and  found  them  to 
consist,  in  round  numbers,  essentially  of  75  per  cent,  of  equal  parts 
of  m-  and  p-cresol  in  the  form  of  a  double  salt  of  potassium,  1 5  per 
cent,  of  a  soda  soap,  and  10  per  cent,  of  talc  and  bolus.  (Apothek. 
Zeifg,  1907,  page  11 26.) 
Pyrenol,  a  substance  that  was  claimed  to  be  benzoyl-thymol- 
