MEG hemisulfate
MEG (Mercaptoethylguanidine) hemisulfate is a potent and selective inhibitor of the inducible NO synthase (iNOS), with EC50s of 11.5, 110, and 60 μM for iNOS, ecNOS, and bNOS respectively in tissue homogenates. MEG hemisulfate is also a potent scavenger of peroxynitrite and inhibits peroxynitrite-induced oxidative processes. MEG hemisulfate has a protective effect in many experimental models of inflammation, including ischemia/reperfusion injury, periodontitis, hemorrhagic shock, inflammatory bowel disease, and endotoxic and septic shock.
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- CAS No.: 3979-00-8
- Formula: C3H9N3S.1/2H2O4S
- Molecular Weight:168.23
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
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Biological Activity
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Chemical Information
- Purity & Documentation
- References
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Help & FAQs
Biological Activity
IC50: 11.5 μM (iNOS), 110 μM (ecNOS), 60 μM (bNOS)[1]
MEG (0.1-1000 μM; 18 h) reduces nitrite accumulation in the supernatant of cultured J774.2 macrophages activated with LPS (10 μg/mL) and INF (50 μg/mL). MEG inhibits iNOS activity in homogenates of lungs taken from LPS-treated rats[1].
MEG (1 μM-3 mM; 3 min) dose-dependently inhibits the peroxynitrite-induced oxidation of cytochrome c2+ and hydroxylation of benzoate[2].
MEG (1-300 μM) inhibits the suppression of mitochondrial respiration and DNA single strand breakage in response to peroxynitrite in J774 cells[2].
MEG (300 μM; 30 min) inhibits the suppression of vascular contractility in response to peroxynitrite in thoracic aortic rings[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
MEG (30-60 mg/kg; a single i.p.) decreases mean arterial blood pressure (MAP) of normal rats[1].
MEG (10 mg/kg; a single i.p.) improves the renal dysfunction and tissue injury induced by ischemia/reperfusion (I/R) of rat kidney[4].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:Sprague-Dawley rats (200-250 g) were injured the esophagus[3]
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Dosage:10 mg/kg
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Administration:I.p. for 5 days
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Result:Reduced the stenosis index (SI) and the histopathologic damage score.
Decreased the malondialdehyde and protein carbonyl content and increased the activities of superoxide dismutase and glutathione peroxidase.
Regulated the nitrate and nitrite level.
Chemical Information
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CAS No. 3979-00-8
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Molecular Weight 168.23
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Formula C3H9N3S.1/2H2O4S
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SMILES
NC(NCCS)=N.O=S(O)(O)=O.[1/2]
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Synonyms
Mercaptoethylguanidine hemisulfate
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Please store the product under the recommended conditions in the Certificate of Analysis.
Purity & Documentation
References
[1]. Southan GJ, et, al. Spontaneous rearrangement of aminoalkylisothioureas into mercaptoalkylguanidines, a novel class of nitric oxide synthase inhibitors with selectivity towards the inducible isoform. Br J Pharmacol. 1996 Feb;117(4):619-32. [Content Brief]
[2]. Szabó C, et, al. Mercaptoethylguanidine and guanidine inhibitors of nitric-oxide synthase react with peroxynitrite and protect against peroxynitrite-induced oxidative damage. J Biol Chem. 1997 Apr 4;272(14):9030-6. [Content Brief]
[3]. Guven A, et, al. Mercaptoethylguanidine attenuates caustic esophageal injury in rats: a role for scavenging of peroxynitrite. J Pediatr Surg. 2011 Sep;46(9):1746-52. [Content Brief]
[4]. Guven A, et, al. Scavenging of peroxynitrite reduces renal ischemia/reperfusion injury. Ren Fail. 2008;30(7):747-54. [Content Brief]
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
MEG hemisulfate Related Classifications
HY-138454 Related Classifications
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