Pfizer Handbook of Microbial Metabolites 68 



108 Palmitic Acid, CieHgoOo, soft white crystals, m.p. 62.5°. 



CHslCHoluCOOH 

 Widely distributed, especially as esters. 



109 Spiculisporic Acid, CiyHo^O^., colorless crystals, m.p. 145°, [3!]546i 



-14.76° (in alcohol). 



CH3(CHo)a— CH— COOH 



O C— COOH 



/ 



o=c 



\ 



CH2— CH2 



Penicillium spiculisporum Lehman, P. crateriforme 

 Gilman and Abbott and P. minioluteum Dierckx 



P. W. Clutterbuck, H. Raistrick and M. L. Pintoul, Trans. 

 Roy. Soc. (London) B220 301 (1931). (Isolation and struc- 

 ture) 



Albert E. Oxford and Harold Raistrick, Biochem. J. 28 1321 

 (1934). (Isolations) 



no Roccellic Acid, C^jH-i.204, colorless crystals, m.p. 131°, [alo^® 

 + 16.80°. 



CH3(CHo)„— CH— COOH 



CH— COOH 



CH3 



Roccella tinctoria (L.), R. viontagnei Bel., etc., also 

 Lecanora species 



Yields 1-4%. Erythrin and i-erythritol also were pres- 

 ent. 



G. Kennedy, J. Breen, J. Keane and T. J. Nolan, Sci. Proc. 

 Roy. Dublin Soc. 21 557 (1937). 



in cis-Vaccenic Acid, Ci,sH;i402, soft white platelets, m.p. 43°. 



CH3(CH,),CH=CH(CH2)9COOH 



Lactobacillus arabinosus, L. casei, Agrobacterium 

 tumefaciens. Streptococcus spp. 



Klaus Hofmann, Robert A. Lucas and Sylvan M. Sax, /. Biol. 

 Chem. 195 473 (1952). 



Klaus Hofmann and Fred Tausig, ibid. 213 425 (1955). 



