Pfizer Handbook of Microbial Metabolites 538 



1023 Hypoxanthine, C5H4ON4. 



H 



Amanita muscaria. Boletus edulis, Agaricus nebularis, 

 Polyporiis sulfiireus 



E. Buschmann, Pharm. Post 45 453 (1912). (Chem. Abstr. 

 6 2485) 



E. Winterstein, C. Reuter and R. Korolev, 7. Chem. Soc. 

 104 I 433 (1913). 



Nils Lofgren, Bjorn Liining and Harry Hedstrom, Acta 

 Chem. Scand. 8 670 (1954). 



Paul Heinz List, Planta Med. 6 424 (1958). 



1024 Xanthine, C5H4O0N4, colorless crystals, m.p. 220° (dec). 



O 





H H 



Amanita muscaria 



E. Buschmann, Pharm. Post 45 453 (1912). (Chem. Abstr. 

 6 2485 ) 



1025 Uric Acid, C-,H403N4, colorless crystals, m.p. >400° (dec). 



O 



OH 



Aspergillus oryzae 



Miazuko Sumi, Biochem. Z. 195 161 (1928). 



1026 Adenine, C-.H-.N., (Trihydrate), colorless needles, m.p. 360-365° 



(dec) (subl. from 220°) (Picrate), dec. 280°. 



