69 Aliphatic Acids and Glycolipides 



112 Lactarinic Acid ( 5-Ketostearic Acid), CisH340.{, colorless plates, 



m.p. 87°. 



O 



CH3(CH,),o— C— (CHolsCOOH 



Lactarius rufus Scopol. 



A. K. Schneider and M. A. Spielman, /. Biol. Chem. 142 345 



(1942). 



113 Stearic Acid, CisHj^^Oo, colorless leaflets m.p. 69°. 



CH3(CHo)i6COOH 

 Widely distributed. 



114 Lactobacillic Acid (Phytomonic Acid), CigHggOs, colorless crys- 



tals, m.p. 33.6-35°. 



CHslCHola— CH CH— (CHzls— COOH 



\ / 

 CH2 



Lactobacillus arabinosus, L. casei, Agrobacterium 

 (Phytomonas) tumefaciens 



Klaus Hofmann, Otto Jucker, William R. Miller, Alfred C. 

 Young, Jr. and Fred Tausig, J. Am. Chem. Soc. 76 1799 (1954). 



Klaus Hofmann, Gino J. Marco and George A. Jeffrey, ibid. 

 80 5717(1958). (Structure) 



115 Tuberculostearic Acid (MO-Methyloctadecanoic Acid), Ci^Hj^sO^, 



colorless oil, m.p. 12.8-13.4°, n,r' 1.4514, [oiW' -0.045°. 



CHslCHo);— CH— (CH-Js— COOH 



I 

 CH3 



Mycobacterium tuberculosis var. hominis 



Franklin S. Prout, James Cason and A. W. Ingersoll, /. Am. 



Chem. Soc. 70 298 (1948). (Synthesis) 



116 Alternaric Acid, CoiHgoOs, colorless crystals, m.p. 138°. 



O 

 CH3 OH OH CH2 O I 



CH3— CH2— CH— CH— C— CH=CH— CH,— C— CHo— CHo— C— CH CHo 



COOH 



C CH 



O ^ CH3 



Alternaria solani Ell. and Mart., Jones and Grout 



