Pfizer Handbook of Microbial Metabolites 324 



Widely distributed. 



683 Betaine, C5H11O2N, white prisms or leaflets, m.p. 293° (dec.)- 



© e 



(CHalsN— CH2COO 



Aspergillus oryzae, Patella vulgata, Claviceps purpurea 

 (Fries) Tul. and other fungi 



Jacqueline Etienne-Petitfils, Bull. soc. chim. biol. 38 1315 



(1956). 



684 L-Methionine, CgHnOgNS, colorless crystals, m.p. '-'280° (dec.) 



(sealed capillary), [aW^ —8° (c 1.0 in water). 



CH3S— CH2CH2CH— COOH 



I 

 NH2 



Widely distributed. 



685 L-Ornithine, C5H12O2N0, colorless crystals, m.p. 140° (subl. 



120°), [alo'' +12° (c 6.5 in water). 



HoN— CH2— CH2— CH2— CH— COOH 



I 

 NH2 



Widely distributed. 



686 Choline Sulfate, C5H13O4NS 



© 



(CHalsN— CH2CH2— O— SO3 



Aspergillus sydowi, Penicillium chrysogenum, lichens, 

 yeasts 



Choline yields of 6000-7000 ^g. per gram of dry cell 

 weight are available in certain Distillers' Dried Solubles. 



D. W. WooUey and W. H. Peterson, /. Biol. Chem. 122 213 

 (1937). 



J. deFlines, J. Am. Chem. Soc. 77 1676 (1955). 



687 Imidazoleacetol (Hydrochloride), CgHgOoNaHCl, white needles, 



m.p. 171-174° (dec). 



O 



CH2— C— CH2OH 



/ 

 ©r=n 



HN:^ NH 



© 

 CI 



Neuorspora crassa and E. coli mutants 



