It is produced by the strain of Streptomyces lactamdurans, Str. chartrensis, Str. griseus, Str. cinnamonensis, Str. fimbiiatus, Str. halstddii, Str. rochei, Str. vuridochromogene. Cephalomycin C was resistant to gram-positive bacteria (weak) and negative bacteria, with low toxicity, and mice could tolerate intraperitoneal injection of 10 g/kg. Used as raw material for semisynthetic cephalosporin.