Spectinomycin sulfate hydrate is a broad-spectrum antibiotic and inhibits the growth of a variety of gram-positive and gram-negative organisms. Spectinomycin sulfate hydrate acts by selectively targeting to the bacterial ribosome and interrupting protein synthesis. Spectinomycin sulfate hydrate is also a noncompetitive inhibitor of td intron RNA with an Ki value of 7.2 mM-.

[Ser2] - Neuromedin C

9,10-Dimethoxycanthin-6-one shows cytotoxic activity against a HT-1080 human fibrosarcoma cell line( IC50 = 5.0 microM).