P. A. Levene 260 
Sample 57. 
0.1024 gm. substance gave 0.0888 gm. COs, 0.0242 gm. H.O, and 0.0502 
gm. BasP207. : 
0.1015 gm. used for Kjeldahl nitrogen estimation required for neutrali- 
zation 4.47 cc. 0.1 N acid. 
Sample 55. 
0.1422 gm. substance used for Kjeldahl nitrogen estimation required 
for neutralization 6.36 cc. 0.1 N acid. _ 
0.1422 gm. substance gave on fusion 0.0348 gm. Mg»P.O;. 
0.0711 “ “ “ 0.0356 gm. BaSO,. 
Calculated for Found: 
CoHi1N209PBa: No. 55 No. 57 
ekg eh cae 23.50 23.65 
UL Epa Stas fhe) eee 2.41 2.64 * 
Leakey ARE Ras cen ge Mie de 6.10 6.27 6.16 
ee Ma ttaree ne ULM ete. ees 6.75 : 6.82 
fot) reels hia) ISON ie aN ieee 29.90 29.47 
AGS EGO) ae Pee ele oh axe Ree 48 .97 49 .02 
The specific rotation of the Ba salt in a 2.5 per cent solution of 
HCl was 
ig 
Te CAS 
Hydrolysis of Barium Salt.—9.0 gm. of the barium salt were 
dissolved in 100.0 cc. of water to which 13.0 gm. of sulfuric acid 
were added and the solution was heated for 4 hours at 125°C. 
in a sealed tube. The sulfuric acid was removed quantitatively 
and the solution was concentrated under diminished pressure 
until uracil] began to crystallize. The mother liquor from uracil 
was tested for amino nitrogen with a negative result. Also the 
attempt to prepare an insoluble picrate of cytosine was unsuc- 
cessful. 
The uracil was recrystallized from dilute sulfuric acid and had 
the following composition: 
0.0984 gm. substance was employed for a Kjeldahl nitrogen estimation 
and required for neutralization 17.49 cc. of 0.1 N acid. 
% 
Calculated for 
CiHiN:203: Found: 
PUM EE 5. Sigg ws cad GROIMACE os io. 1p. aude SR ae 25.05 24.88 
Cytidinephosphoric Acid.—The mother liquor from the brucine 
salt of the uridinephosphoric acid was concentrated until a second 
