WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 206002

CAS#: 91441-48-4 (free base)

Description: Teloxantrone is an anthrapyrazole antineoplastic antibiotic. Teloxantrone intercalates into DNA and interacts with topoisomerase II, thereby inhibiting DNA replication and repair, as well as RNA and protein synthesis.

Chemical Structure

CAS# 91441-48-4 (free base)

Theoretical Analysis

MedKoo Cat#: 206002
Name: Teloxantrone
CAS#: 91441-48-4 (free base)
Chemical Formula: C21H25N5O4
Exact Mass: 411.19065
Molecular Weight: 411.4543
Elemental Analysis: C, 61.30; H, 6.12; N, 17.02; O, 15.55

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Pricing updated 2021-03-09. Prices are subject to change without notice.

Teloxantrone free base is not in stock, may be available through custom synthesis. For cost-effective reason, minimum 1 gram order is requested. The product will be characterized by NMR, HPLC and MS analysis. Purity (HPLC) is usually >98%. CoA, QC data, MSDS will be provided when product is successfully made. The estimated lead time is 2-3 months. Please send email to to inquire quote.

Related CAS #: 132937-88-3 (HCl)   91441-48-4 (free base)   123830-79-5 (HCl)    

Synonym: Moxantrazole; Teloxantrone; CI-937; DuP-937; NSC-355644; PD-113309; CI937; DuP937; NSC355644; PD113309.

IUPAC/Chemical Name: 7,10-dihydroxy-2-(2-((2-hydroxyethyl)amino)ethyl)-5-((2-(methylamino)ethyl)amino)dibenzo[cd,g]indazol-6(2H)-one

InChi Key: Moxantrazole; Teloxantrone; CI-937; DuP-937; NSC-355644; PD-113309; CI937; DuP937; NSC355644; PD113309.

InChi Code: InChI=1S/C21H25N5O4/c1-22-6-7-24-12-2-3-13-17-16(12)21(30)19-15(29)5-4-14(28)18(19)20(17)25-26(13)10-8-23-9-11-27/h2-5,22-24,27-29H,6-11H2,1H3


Solid powder

>98% (or refer to the Certificate of Analysis)

Shipping Condition:
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition:
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Soluble in DMSO, not in water

Shelf Life:
>5 years if stored properly

Drug Formulation:
This drug may be formulated in DMSO

Stock Solution Storage:
0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code:

Handling Instructions:

Preparing Stock Solutions

The following data is based on the product molecular weight 411.4543 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Select a batch to recalculate based on the batch molecular weight:
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL

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 1: Renner U, Blanz J, Freund S, Waidelich D, Ehninger G, Zeller KP. Biotransformation of CI-937 in primary cultures of rat hepatocytes. Formation of glutathione conjugates. Drug Metab Dispos. 1995 Jan;23(1):94-101. PubMed PMID: 7720531.

2: Erlichman C, Moore M, Kerr IG, Wong B, Eisenhauer E, Zee B, Whitfield LR. Phase I pharmacokinetic and pharmacodynamic study of a new anthrapyrazole, CI-937 (DUP937). Cancer Res. 1991 Dec 1;51(23 Pt 1):6317-22. PubMed PMID: 1933893.

3: Wong B, Nordblom G, Chang T, Whitfield L. Lack of dose proportional pharmacokinetics for CI-937, an anthrapyrazole DNA intercalator, in mice. Res Commun Chem Pathol Pharmacol. 1989 Nov;66(2):191-202. PubMed PMID: 2602655.

4: Nordblom GD, Pachla LA, Chang T, Whitfield LR, Showalter HD. Development of a radioimmunoassay for the anthrapyrazole chemotherapy agent CI-937 and the pharmacokinetics of CI-937 in rats. Cancer Res. 1989 Oct 1;49(19):5345-51. PubMed PMID: 2766301.

Additional Information