Bis(diazoacetyl)butane is a mutagen and traditionally related to radio-mimetic chemical mutagens due to the similarity of appearance of mutagenic action of this mutagen and physical mutagens. It also has anti-tumor and carcinogenic activity.
CP 67015 has an inhibitory effect on the function of topoisomerase, and is a direct mutagen in mammalian cells, which has effects on gene and chromosome levels.