591 Unclassified Metabolites 



1175 Hygrostatin, light yellow powder, m.p. 129-131° (dec), [a]ii"" 



+43° (c 1.21 in methanol). 



Contains nitrogen, but no sulfur or halogen. U.V. at 

 240 m^. 



Streptomyces Jiygrostaticus 



Kenzo Furushiro, Kiyotake Shimizu, Heiichi Sakai, Masayuki 

 Minoyata and Toshio Fujisawa, lyaku, Shigen Kankyusho 

 Nevipo 24-39 (1958). (Chem. Abstr. 54 10048b) 



1176 Ilhidin M, Cj,H^.o07, prismatic rods in ethanol, m.p. 216° (cor.)- 



[a],,-" -126° in ethanol. Mol. Wt. 386. U.V. 247, 330 m^ 

 in 95 ^f ethanol. 



Contains two acidic groups and an a,/8-unsaturated 

 carbonyl group. 



Yield 0.08 g. per liter. 



1177 Illudin S, Ci.-,R.o04, crystalline, m.p. 124-125°. Mol. Wt. 264. 



U.V. 235, 328 m^ in 95 ^c ethanol. 



Yield 0.33 g. per liter. 



Clitocybe illudens 



Marjorie Anchel, Annette Hervey and William J. Robbins, 

 Proc. Nat. Acad. Sci. U. S. 36 300 (1950); 38 927 (1952). 



A third, antibiotically inactive substance, Ci,|Hi(.04 or 

 CinHo^Oe, crystals, m.p. 72-74°, [aln'" -107° (in absolute 

 ethanol) occurred in the same culture. 



1178 Imoticidin, m.p. 245° (darkening from 210°). 



An antibiotic isolate, C 64.71, H 9.50, N 0.0, H.O 7.63. 

 Mol. Wt. 532-553. 



Streptomyces albus 



Tadao Inouye, Yasuhiro Okamoto and Yosikazu Nishikado, 

 Ber. Ohara Inst. Landjuirtsch. Biol., Okayama Univ. 11 95 

 (1959). (In English) 



1179 Indigoidine, deep blue pigment, no melting point. 



Low solubility in most solvents. Soluble in dilute hy- 

 drochloric acid. Analysis of partially purified compound: 

 C 47.74, H 3.82, N 17.95. Formed a red crystalline ace- 

 tate, m.p. >300° (dec), but more soluble: C 49.63, 

 H 3.98, N 16.05, acetyl 16.9. A red benzoate was also 

 prepared. 



Corynebacterium insidiosiim (McCulloch) Jensen, 

 Pseudomonas indigofera, Erwinia chrysanthemi, Arthro- 

 bacter sp. 



