KEYS TO ANTIBIOTICS 



143 



29. 280 to 282 in acid 



30. 281 in hexane 



31. 285 in methanol 



32. 289 



33. 290 to 295 



34. 292 



35. 304 in othanol 



36. 30(3 in 50 per cent a(iueous ethanol 



37. 310 in i\ N H2SO4 



38. 350 



39. 405 to 430 in dilute HCl 



40. 440 in methanol 



B. Antibiotics for which two maxima of light absorpt 



1 . 207 and 304 in methanol 



2. 208 and 245 in ethanol 



3. 215 and 257 to 258 in methanol 



4. 220 to 2.30 and 275 in methanol 



5. 222 and 293 



6. 223 to 225 and 322 in ethanol 



7. 225 and 280 



8. 226 and 275 



9. 230 to 240 and 334 to 340 in 0.1 .¥ HCl 

 10. 230 to 231 and 279 to 285 in ethanol 



11. 230 to 231 and 278 to 285 in water 



12. 231 and 276 



13. 235 and 280 in 0.01 .V XaOH 



14. 240 and 295 



15. 240 and 267 to 268 in ethanol or methanol 



16. 240 and 310 in 0.01 .¥ alcoholic sulfuric acid 



17. 240 and 440 to 450 



18. 243 and 320 to 325 in afjueous methanol 



19. 243 and 312 



20. 244 and 284 



21. 245 and 255 



22. 245 and 270 to 275 



23. 245 and 440 to 450 



24. 248 and 308 in 70 per cent ethanol at pH 7.5 



25. 249 and 317 in isopropyl alcohol 



26. 249 and 321 in p?l 7.0 phosphate buffer 



27. 250 and 400 to 450 



28. 255 and 320 in water 



vancomj'cm 

 valinomycin 

 matamycin 

 erythromycin B 

 oleandomycin 

 erythromycin C 

 seligocidin 

 amicetin 

 bryamycin 

 etamycin 

 pluramycin A 

 nocardianin 

 ion have been reported 

 staphylomycin factor S 

 puromycin A 

 mycospocidin 

 antibiotic PA 114 A 

 picromycin 

 methymycin 

 narbomycin 

 antibiotic PA 133A 

 abikox'iromycin 

 tertiomycin B 

 leucomycins 

 antibiotic 446 

 (juestiomycin B 

 actinojiocin 



aureolic acid (Mg salt) 

 proactinomycin C 

 musarin 

 azalomycin F 

 celesticetin 

 actincnnycins 

 antibiotic F 43 

 actinoleukin 

 antibiotic l-81d-ls 

 aniibiotic SKCC 1377 (pic 



rat(\) 

 proactinomycin B 

 diazomycins 

 ractinomycin A 

 novobiocin 

 antibiotic X-537-A 

 amicetin B 

 ractinomycin B 

 jirisamine 



