519 



Pyrimidines 



1012 C:vtidine-2'-phosphate (Cytidylic Acid) CuHi^OhN-,?, colorless 

 crystals, m.p. 238-240° (dec), [a]u +20.7° (c 1.0 In 

 water). 



Yeast 



Hubert S. Loring, Nydia G. Luthy, Henry W. Bortner and 

 Luis W. Levy, /. Am. Chern. Soc. 72 2811 (1950). 



Hubert S. Loring and Nydia G. Luthy, ibid. 73 4215 (1951). 



1013 Cytidine-3'-phosphate (Cytidylic Acid), C,,Hi40sN;{P, colorless 

 tablets, m.p. 230-234° (dec), [ali, +49°. (c 0.5 in water). 



(OHIjP O OH 



Yeast 



The 5'-di- and triphosphates also have been isolated 

 from microorganisms. 



Hubert S. Loring, Nydia G. Luthy, Henry W. Bortner and 

 Luis W. Levy, /. Am. Chem. Soc. 72 2811 (1950). 



Hubert S. Loring and Nydia G. Luthy, ibid. 73 4215 (1951). 



