G2201-C, a new cyclopentenedione antibiotic, isolated from the fermentation broth of Streptomyces cattleya.

Abstract
S. cattleya produced a new cyclopentenedione antibiotic, G2201-C [C6H6O4] which is moderately active in vitro gram-positive bacteria, weakly active aainst gram-negative bacteria and inactive against fungi. G2201-C is toxic to mice.