CAS No. 512-64-1

Echinomycin (Quinomycin A) Chemical Structure
Chemical Structure
Check the Echinomycin (Quinomycin A) product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name N-[(1R,4S,7R,11S,14R,17S,20R,24S)-2,4,12,15,17,25-hexamethyl-27-methylsulfanyl-3,6,10,13,16,19,23,26-octaoxo-11,24-di(propan-2-yl)-20-(quinoxaline-2-carbonylamino)-9,22-dioxa-28-thia-2,5,12,15,18,25-hexazabicyclo[12.12.3]nonacosan-7-yl]quinoxaline-2-carboxamide
CAS Number 512-64-1
Molecular Formula

C51H64N12O12S2
Molecular Weight (MW) 1101.26
InChIKey AUJXLBOHYWTPFV-VITLIGDRSA-N

Biological Activity

Echinomycin (Quinomycin A) is a sequence-specific DNA bis-intercalator and potent inhibitor of hypoxia-inducible factor-1 (HIF-1) transcriptional activity with an EC50 of approximatelyin U251-HRE cells. By blocking HIF-1α/β heterodimer binding to hypoxia-responsive elements, it suppresses downstream hypoxia-induced gene expression and angiogenic pathways, thereby impairing cellular survival under hypoxic conditions. [1]

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Reference

[1] Kong D, et al. Cancer Res. 2005;65(19):9047-55.

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Note: Technical data last updated: Sep 1, 2026.