Empirical Formula (Hill Notation):
CAS Number:
Molecular Weight:
MDL number:
PubChem Substance ID:

Quality Level


≥98% (HPLC)






DMSO: >10 mg/mL
H2O: insoluble

storage temp.

room temp

SMILES string




InChI key



CGS-15943 has been used as a non-selective adenosine receptor antagonist to study its effects on the proliferation of pancreatic ductal adenocarcinoma (PDAC) cells and hepatocellular carcinoma (HCC). It has also been used as a non-selective adenosine receptor antagonist to investigate the mechanism underlying adenosine inhibition on cholangiocarcinoma (CCA) cells.


25 mg in poly bottle

Biochem/physiol Actions

CGS-15943 is a potent and non-selective adenosine receptor antagonist. It exhibits anti-carcinogenic and anti-apoptotic activity.

Features and Benefits

This compound is also offered as part of Sigma′s Library of Pharmacologically Active Compounds (LOPAC®1280), a biologically annotated collection of high-quality, ready-to-screen compounds. Click here to learn more.

Legal Information

LOPAC is a registered trademark of Sigma-Aldrich Co. LLC

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves


NONH for all modes of transport

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

Elise M Weerts et al.
Psychopharmacology, 168(1-2), 155-163 (2003-04-02)
Caffeine and the adenosine A(1) and A(2A) receptor antagonist CGS15943 produce many behavioral effects that are similar to those produced by classic stimulant drugs (e.g. cocaine and amphetamines). The current study evaluated whether CGS15943 would maintain self-administration and reinstate extinguished...
Soo-Kyung Kim et al.
Journal of medicinal chemistry, 46(23), 4847-4859 (2003-10-31)
A three-dimensional model of the human A(2A) adenosine receptor (AR) and its docked ligands was built by homology to rhodopsin and validated with site-directed mutagenesis and the synthesis of chemically complementary agonists. Different binding modes of A(2A)AR antagonists and agonists...
J m Li et al.
The Journal of surgical research, 80(2), 357-364 (1999-01-08)
Adenosine is a potent vasodilator of vascular smooth muscle. Endothelium-derived nitric oxide (NO) elicits vasodilation. We have previously reported that adenosine stimulates the production of NO from porcine carotid arterial endothelial cells (PCAEC) via a receptor-mediated mechanism. This study was...
M Williams et al.
The Journal of pharmacology and experimental therapeutics, 241(2), 415-420 (1987-05-01)
CGS 15943A, a triazoloquinazoline, is a potent and selective adenosine receptor antagonist as assessed by its effects on radioligand binding and adenosine-stimulated adenylate cyclase activity in guinea pig synaptoneurosomes. At the adenosine A-1 receptor labeled with [3H]cyclohexyladenosine, CGS 15943A had...
Tiago Donatelli Serafim et al.
PLoS neglected tropical diseases, 6(9), e1833-e1833 (2012-10-11)
Leishmania parasites, the causative agent of leishmaniasis, are transmitted through the bite of an infected sand fly. Leishmania parasites present two basic forms known as promastigote and amastigote which, respectively, parasitizes the vector and the mammalian hosts. Infection of the...

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