Doxorubicin (Adriamycin; NSC-123127; FI-106; Adriblastine; Adrimedac) is a naturally occuring anthracycline antibiotic isolated from the bacterium Streptomyces peucetius var.

Aminocamptothecin (9-amino Camptothecin, 9-AC, 9-amino CPT), an analog of camptothecin (CPT) with higher water solubility, is a potent inhibitor of topoisomerase I with anti-tumor activity

Betulinic acid (also known as ALS-357; LS-357; Mairin; Lupatic acid; Betulic acid) is a naturally occuring pentacyclic triterpenoid extracted from Syzigium claviflorum that displays anti-HIV and antitumor activity.

Belotecan HCl (CKD-602), the hydrochloride of CKD602 which is a Topoisomerase I inhibitor, is a semi-synthetic camptothecin analogue with potential antitumor activity.

Beta-Lapachone (also known as ARQ-501; NSC 26326; ARQ501; NSC-26326) is a novel, naturally occurring, potent and selective DNA topoisomerase I inhibitor with potential antineoplastic activity.

Bisantrene (CL 216942; NSC 337766) is potent inhibitor of topoisomerase II and DNA intercalators.

Doxorubicin HCl (formerly known as Adriamycin; FI 106; Adriblastina; DOXOCELL; Doxolem; NSC-123127 etc.) is an anthracycline antibiotic agent with anticancer activity.