8-(4-Chlorophenylthio)-guanosine 3′,5′-cyclic monophosphate sodium salt

≥95% (HPLC), powder

Empirical Formula (Hill Notation):
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PubChem Substance ID:

Quality Level


≥95% (HPLC)






H2O: 25 mg/mL

storage temp.


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8-(4-Chlorophenylthio)-guanosine 3′,5′-cyclic monophosphate sodium salt has been used to activate GMP-dependent protein kinase (PKG) in vascular smooth muscle cells (VSMCs).


10, 50 mg in poly bottle

Biochem/physiol Actions

Membrane-permeable analog of cGMP that does not affect cGMP-regulated phosphodiesterase. A more potent cGMP analog than 8-Br-cGMP due to greater membrane permeability and a higher resistance to hydrolysis by phosphodiesterase. Used as a selective activator of cGMP dependent protein kinase (PKG). Found to be a very potent cyclic nucleotide-gated channel agonist.

Features and Benefits

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This compound is featured on the PKA & PKG page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.


13 - Non Combustible Solids

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

Richard B Thorpe et al.
American journal of physiology. Regulatory, integrative and comparative physiology, 304(9), R734-R743 (2013-03-01)
Chronic hypoxia attenuates soluble guanylate cyclase-induced vasorelaxation in serotonin (5-HT)-contracted ovine carotid arteries. Because protein kinase G (PKG) mediates many effects of soluble guanylate cyclase activation through phosphorylation of multiple kinase targets in vascular smooth muscle, we tested the hypothesis...
B E VanUffelen et al.
Biochemical pharmacology, 56(8), 1061-1063 (1998-10-17)
In previous experiments, it was shown that migration of electropermeabilized human neutrophils induced by a combination of cGMP and cAMP markedly lower relative to that induced by cGMP or cAMP alone. However, when cGMP was replaced with 8-(para-chlorophenylthio-guanosine-3',5'-cyclic monophosphate (8-pCPT-cGMP)...
M Suhasini et al.
Molecular and cellular biology, 18(12), 6983-6994 (1998-11-20)
Agents which increase the intracellular cyclic GMP (cGMP) concentration and cGMP analogs inhibit cell growth in several different cell types, but it is not known which of the intracellular target proteins of cGMP is (are) responsible for the growth-suppressive effects...
Yang Chen et al.
Circulation research, 124(10), 1462-1472 (2019-04-02)
Acute kidney injury (AKI) has a high prevalence and mortality in critically ill patients. It is also a powerful risk factor for heart failure incidence driven by hemodynamic changes and neurohormonal activation. However, no drugs have been approved by the...
P He et al.
The American journal of physiology, 274(6 Pt 2), H1865-H1874 (1998-06-25)
To investigate the mechanisms whereby guanosine 3',5'-cyclic monophosphate (cGMP) modulates microvessel permeability in vivo, we measured changes in microvessel hydraulic conductivity (Lp) and endothelial cytoplasmic Ca2+ concentration ([Ca2+]i) in response to the cGMP analogs 8-bromo-cGMP (8-BrcGMP) and 8-(p-chlorophenylthio)cGMP (8-pCPT-cGMP) in...
Related Content
Cyclic nucleotides, including cyclic AMP (cAMP), cyclic GMP (cGMP) and cyclic ADP-ribose, have been extensively studied as second messengers of intracellular events initiated by activation of GPCRs. cAMP modifies cell function in all eukaryotic cells, principally through the activation of cAMP-dependent protein kinase (PKA), but also through cAMP-gated ion channels and guanine nucleotide exchange factors directly activated by cAMP.
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