Antibiotics GE 81112 factors A, B, B1, pharmaceutically acceptable salts and compositions, and use thereof

The invention relates to an antibiotic substances of microbial origin, arbitrarily denominated GE81112 factor A, factor B1 and factor B, the individual factors, the mixture of said factors in any proportion, which is produced by fermentation of Streptomyces sp. DSM14386, the pharmaceutically acceptable salts and compositions thereof, and their use as an antibacterial agent having inhibitory activity versus susceptible microbes.