CGS 21680 HCl

For research use only.

Catalog No.S2153

11 publications

CGS 21680 HCl Chemical Structure

CAS No. 124431-80-7

CGS 21680 HCl is an adenosine A2 receptor agonist with IC50 of 22 nM, exhibits 140-fold over A1 receptor.

Selleck's CGS 21680 HCl has been cited by 11 publications

1 Customer Review

  • Effects of CGS-21,680 and forskolin on caffeine inhibited the expression of leptin in the human BeWo cells. The cells were treated with CGS-21,680 (2 μM, adenosine receptor A2a (ADORA2A) agonist)/forskolin (4 μM, adenylyl cyclase (AC) agonist, cAMP activator) and/or caffeine (20 μM) for 7 d. (A and B) The mRNA expression of leptin and ADORA2A was detected by quantitative real-time PCR, n = 3. (C) The protein expression of ADORA2A was detected by Western blotting, n = 2. (D) At the end of the treatment, the mRNA expression of leptin was detected by real-time PCR, n = 3. GAPDH was used as an internal control. The results are expressed as the mean ± S.E.M. of three independent experiments; *P < 0.05 and **P < 0.01 vs. control.

    Toxicol Appl Pharmacol, 2016, 289(1):109-16.. CGS 21680 HCl purchased from Selleck.

Purity & Quality Control

Choose Selective Adenosine Receptor Inhibitors

Biological Activity

Description CGS 21680 HCl is an adenosine A2 receptor agonist with IC50 of 22 nM, exhibits 140-fold over A1 receptor.
Adenosine A2 receptor [1]
(in rat brain tissue)
22 nM
In vitro

CGS 21680 HCl is an adenosine A2 receptor agonist with IC50 of 22 nM, exhibits 140-fold over A1 receptor. In an isolated perfused working rat heart model, CGS 21680C effectively increases coronary flow with an ED25 value of 1.8 nM. [1] CGS 21680 binds adenosine A2 receptor with high affinity (Kd = 15.5 nM) and limited capacity (apparent Bmax = 375 fmol/mg of protein) to a single dass of recognition sites.[2] In hippocampal slices, CGS 21680 apis weak agonist on pre- and postsynaptic measures of electrophysiologicaJ activity (putative Al receptor mediated events) and is ineffective at stimulating the formation of cAMP (a putative A2 mediated response). In striatal slices, CGS 21680 potently stimulates the formation of cAMP with an EC50 of 110 nM but is ineffective at inhibiting electrically stimulated dopamine release. [3]CGS 21680A is the hydrochloride salt, while CGS 21680C is the sodium salt of CGS 21680.

In vivo CGS 21680A is active p.o. in the spontaneously hypertensive rat at a dose of 10 mg/kg with efficacy for up to 24 hr. CGS 21680A caused a transient (60 min) increase in heart rate. [1]CGS 21680 is a potent depressant of the spontaneous, acetylcholine and glutamate evoked firing of rat cerebral cortical neurons. [4]


Animal Research:[1]
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  • Animal Models: rat
  • Dosages: 10 mg/kg
  • Administration: p.o.
    (Only for Reference)

Solubility (25°C)

In vitro DMSO 100 mg/mL (186.57 mM)
Water Insoluble
Ethanol Insoluble
In vivo Add solvents to the product individually and in order(Data is from Selleck tests instead of citations):
5% DMSO+40% PEG 300+5% Tween 80+50%dd H2O
For best results, use promptly after mixing.
5 mg/mL

* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.

Chemical Information

Molecular Weight 535.98


CAS No. 124431-80-7
Storage powder
in solvent
Synonyms N/A
Smiles CCNC(=O)C1C(C(C(O1)N2C=NC3=C(N=C(N=C32)NCCC4=CC=C(C=C4)CCC(=O)O)N)O)O.Cl

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Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)
Dosage mg/kg Average weight of animals g Dosing volume per animal ul Number of animals
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% DMSO % % Tween 80 % ddH2O

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Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID