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L-NG-Nitroarginine Methyl Ester (L-NAME) (CAS 51298-62-5)

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Alternate Names:
L-NAME HCl;H-Arg(NO2)-OMe HCl;N-Nitro-L-arginine methyl ester hydrochloride
Application:
L-NG-Nitroarginine Methyl Ester (L-NAME) is a precursor to NOS inhibitor, L-NNA - requires bioactivation to become a fully functional inhibitor
CAS Number:
51298-62-5
Purity:
≥98%
Molecular Weight:
269.69
Molecular Formula:
C7H15N5O4•HCl
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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L-NG-Nitroarginine Methyl Ester (L-NAME) requires hydrolysis of the methyl ester by cellular esterases to become a fully functional inhibitor (L-NNA). L-NAME exhibits some selectivity for inhibition of NOS. It exhibits Ki values of 15 nM, 39 nM, and 4.4 muM for NOS1 (nNOS) (bovine), NOS3 (eNOS) (human), and NOS2 (iNOS) (mouse), respectively. The reported Ki value for the inhibition of NOS2 ranges from 4-65 muM. L-NAME inhibits cGMP formation in endothelial cells with an IC50 of 3.1 muM (in the presence of 30 muM arginine) and reverses the vasodilation effects of acetylcholine in rat aorta rings with an EC50 of 0.54 muM.


L-NG-Nitroarginine Methyl Ester (L-NAME) (CAS 51298-62-5) References

  1. Impairment of neocortical long-term potentiation in mice deficient of endothelial nitric oxide synthase.  |  Haul, S., et al. 1999. J Neurophysiol. 81: 494-7. PMID: 10036253
  2. Generation of superoxide by purified brain nitric oxide synthase.  |  Pou, S., et al. 1992. J Biol Chem. 267: 24173-6. PMID: 1280257
  3. Nitric oxide: an endogenous modulator of leukocyte adhesion.  |  Kubes, P., et al. 1991. Proc Natl Acad Sci U S A. 88: 4651-5. PMID: 1675786
  4. Characterization of three inhibitors of endothelial nitric oxide synthase in vitro and in vivo.  |  Rees, DD., et al. 1990. Br J Pharmacol. 101: 746-52. PMID: 1706208
  5. Action of lipopolysaccharide on interstitial cells of cajal from mouse small intestine.  |  Zuo, DC., et al. 2012. Pharmacology. 90: 151-9. PMID: 22890360
  6. L-NG-nitro arginine (L-NOARG), a novel, L-arginine-reversible inhibitor of endothelium-dependent vasodilatation in vitro.  |  Moore, PK., et al. 1990. Br J Pharmacol. 99: 408-12. PMID: 2328404
  7. Arachidonic acid-evoked Ca2+ signals promote nitric oxide release and proliferation in human endothelial colony forming cells.  |  Zuccolo, E., et al. 2016. Vascul Pharmacol. 87: 159-171. PMID: 27634591
  8. Acetylcholine induces intracellular Ca2+ oscillations and nitric oxide release in mouse brain endothelial cells.  |  Zuccolo, E., et al. 2017. Cell Calcium. 66: 33-47. PMID: 28807148
  9. Melatonin attenuates hypertension and oxidative stress in a rat model of L-NAME-induced gestational hypertension.  |  Zuo, J. and Jiang, Z. 2020. Vasc Med. 25: 295-301. PMID: 32469270
  10. Direct measurement of nitric oxide generation in the ischemic heart using electron paramagnetic resonance spectroscopy.  |  Zweier, JL., et al. 1995. J Biol Chem. 270: 304-7. PMID: 7814391
  11. Halothane and isoflurane dose-dependently inhibit the cyclic GMP increase caused by N-methyl-D-aspartate in rat cerebellum: novel localization and quantitation by in vitro autoradiography.  |  Zuo, Z., et al. 1996. Neuroscience. 74: 1069-75. PMID: 8895875
  12. The direct effects of thyroid hormones on rat mesenteric resistance arteries.  |  Zwaveling, J., et al. 1997. Fundam Clin Pharmacol. 11: 41-6. PMID: 9182075
  13. Nitric oxide synthase inhibitors impair reference memory formation in a radial arm maze task in rats.  |  Zou, LB., et al. 1998. Neuropharmacology. 37: 323-30. PMID: 9681930

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

L-NG-Nitroarginine Methyl Ester (L-NAME), 1 g

sc-200333
1 g
$48.00

L-NG-Nitroarginine Methyl Ester (L-NAME), 5 g

sc-200333A
5 g
$107.00

L-NG-Nitroarginine Methyl Ester (L-NAME), 25 g

sc-200333B
25 g
$328.00