Some Schiff-base cobalt(Ⅱ)chelates like ethylenebis[(2-hydroxy-3-methoxy-5-methylphenyl)methylideneiminato]Cobalt(Ⅱ)were coordioatively anchoredonto poly(4-vi
Bacitracin consists of a mixture of several closely related polypeptide antibiotics produced from Bacillus licheniformis.The major component, Bacitracin A, is a