Pfizer Handbook of Microbial Metabolites 204 



/5-Indole acetic Acid, m.p. 167° 

 Phenylacetic Acid, m.p. 76° 

 2-Decenedioic Acid, C10H16O4, m.p. 172° 

 Pigment I (/?-Penetrin), m.p. 207°. 



^-Penetrin is identical with an alkaline hydrolysis prod- 

 uct of penetrinic acid, a metabolite of P. notatum reported 

 earlier 



Pigment II, CioHuO,;N, orange prisms, m.p. 105°, N.E. 

 indicates a dicarboxylic acid. Optically inactive. Nega- 

 tive FeClg test. Decolorizes permanganate. Decolorized 

 by sodium hydrosulfite and apparently reduced to a hydro- 

 quinone, m.p. 129°. 



Frank H. Stodola, Jacques L. Wachtel, Andrew J. Moyer 

 and Robert D. Coghill, J. Biol. Chem. 159 67 (1945). 



418 Dehydroaltenusin, CigHiaOe, yellow needles, m.p. 189° (dec). 



An acidic compound probably related to altenusin. 

 Alternaria tenuis 



T. Rosett, R. H. Sankhala, C. E. Stickings, M. E. U. Taylor 

 and R. Thomas, Biochem. }. 67 390 (1957). 



419 Altenusin, Ci-,Hi406, colorless prisms, m.p. 202° (dec). 



An acidic compound which forms a tetramethyl deriva- 

 tive. Probably related to alternariol. 



Alternaria tenuis 



T. Rosett, R. H. Sankhala, C. E. Stickings, M. E. U. Taylor 

 and R. Thomas, Biochem. J. 67 390 (1957). 



420 Altenuic Acid I, C15H14O8, colorless needles, m.p. 183°, second 



m.p. 224-230° (dec). 



A dibasic acid probably related to alternariol. 



Alternaria tenuis 



T. Rosett, R. H. Sankhala, C. E. Stickings, M. E. U. Taylor 

 and R. Thomas, Biochem. J. 67 390 (1957). 



421 Altenuic Acid II, Ci-,Hi408, colorless plates, m.p. 245° (dec). 



A dibasic acid probably related to alternariol. 

 Alternaria tenuis 



T. Rosett, R. H. Sankhala, C. E. Stickings, M. E. U. Taylor 

 and R. Thomas, Biochem. J. 67 390 (1957). 



422 Altenuic Acid III, C].,Hi40s, colorless prisms, m.p. 198-202°, 



second m.p. 225° (dec). 



A dibasic acid probably related to alternariol. 



Alternaria tenuis 



T. Rosett, R. H. Sankhala, C. E. Stickings, M. E. U. Taylor 

 and R. Thomas, Biochem. }. 67 390 (1957). 



