Cobalt-free corrinoid compounds from photosynthetic bacteria.
D055598:Chemical Phenomena; D002621:Chemistry; D002844:Chromatium / Q000032:analysis*; D003035:Cobalt; D004586:Electrophoresis; D013057:Spectrum Analysis; D014805:Vitamin B 12 / Q000032:analysis*
D003035:Cobalt; D014805:Vitamin B 12