Chromomycin A3

Chromomycin A3 is a glycosidic antibiotic produced at the fermentation of a strain of Streptomyces griseus. It is also called toyomycin.

Uses

 * Membrane-impermeant G/C-specific fluorescent DNA-binding dye.
 * Antibacterial antibiotic.
 * Antitumor antibiotic that inhibits RNA synthesis, especially in solid tumors
 * Attention: actual medical use is unknown.