my account
  Loading... Please wait...

Product Details

Irinotecan HCl | Topoisomerase I inhibitor

Irinotecan (136572-09-3) is a semi-synthetic derivative of camptothecin (Cat.# 10-1041) that is an FDA approved anticancer drug. It is a prodrug that is converted by tissue esterases to 7-ethyl-10-hydroxycamptothecin (SN-38, Cat.# 10-2425), a potent inhibitor of DNA topoisomerase I.1,2 Although irinotecan is also a topoisomerase inhibitor, SN-38 is approximately 1000 times as potent in purified enzyme studies. In vitro cytotoxicity assays show much greater variability in potency between the two (2-2000 fold).3

1) Kunimoto et al. (1987) Antitumor activity of 7-ethyl-10-[4-(1-piperidino)-1-piperidino]carbonyloxy-camptothecin, a novel water-soluble derivative of camptothecin against murine tumors; Cancer Res., 47 5944
2) Mathijssen et al., (2002) Pharmacology of topoisomerase I inhibitors irinotecan (CPT-11) and toptecan; Curr. Cancer Drug Targets, 253 5892
3) Pfizer drug insert

Focus Biomolecules supplier, chemical structure of Irinotecan HCl | Topoisomerase I inhibitor | CAS 136572-09-3

Catalog#  10-2146

Please note that we do not sell to individuals and that all orders placed by non-research organizations will incur a $20 restocking/refund fee.
Request Bulk Quote
Catalog Number:
Topoisomerase I inhibitor
Chemical Name:
(S)-4,11-Diethyl-3,4,12,14-tetrahydro-4-hydroxy-3,14-dioxo-1H-pyrano[3',4':6,7]-indolizino[1,2-b]quinolin-9-yl-[1,4'-bipiperidine]-1'-carboxylate hydrochloride
Molecular Weight:
Molecular Formula:
C33H38N4O6 HCl 3H20
Soluble in DMSO (up to 50 mg/ml), in Water (up to 4 mg/ml) or in Ethanol (up to 4 mg/ml).
Physical Properties:
Yellow solid
98% by TLC
NMR (Conforms)
Storage Temperature:
Stable for 1 year as supplied. Solutions in DMSO, ethanol or distilled water may be stored at -20° for up to 3 months.
Shipping Code:
Materials provided by Focus Biomolecules are for laboratory research use only and are not intended for human or veterinary applications.

Focus BiomoleculesPlymouth Meeting, PA USA1-855-FOCUS21

Connect with Focus

Click the button below to add the Irinotecan HCl | Topoisomerase I inhibitor to your wish list.