Date published: 2025-10-15

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L-NMMA (citrate)

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Alternate Names:
L-NG-monomethyl Arginine citrate, N5- [imino(methylamino)methyl]- L- ornithine, citrate
Application:
L-NMMA (citrate) is a non-selective inhibitor of NOS
Molecular Weight:
756.8
Molecular Formula:
3(C7H16N4O2)•C6H8O7
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-NMMA (citrate) is a relatively non-selective inhibitor of all NOS isoforms including NOS1, NOS2, and NOS3. L-NMMA is the archetypal NOS inhibitor to which other inhibitors are most often compared. The Ki values for NOS1 (nNOS) (rat), NOS3 (eNOS) (human), and NOS2 (iNOS) (mouse) are approximately 0.18, 0.4, and 6 muM, respectively. L-NMMA (citrate) refers to N^G-Monomethyl-L-arginine, which is abbreviated as L-NMMA. It is a citrate salt form of the amino acid derivative L-NMMA. L-NMMA is a competitive inhibitor of nitric oxide synthase (NOS), an enzyme responsible for the production of nitric oxide (NO) in the body.


L-NMMA (citrate) References

  1. Nitric oxide sustains nuclear factor kappaB activation in cytokine-stimulated chondrocytes.  |  Clancy, RM., et al. 2004. Osteoarthritis Cartilage. 12: 552-8. PMID: 15219570
  2. Suppression of endotoxin-induced fever in near-term pregnant rats is mediated by brain nitric oxide.  |  Begg, DP., et al. 2007. Am J Physiol Regul Integr Comp Physiol. 292: R2174-8. PMID: 17332165
  3. Nitric oxide synthase inhibitors in cardiogenic shock: present and future.  |  Kaluski, E., et al. 2008. Future Cardiol. 4: 183-9. PMID: 19804295
  4. Mechanical wounding induces a nitrosative stress by down-regulation of GSNO reductase and an increase in S-nitrosothiols in sunflower (Helianthus annuus) seedlings.  |  Chaki, M., et al. 2011. J Exp Bot. 62: 1803-13. PMID: 21172815
  5. Acute DPP-4 inhibition modulates vascular tone through GLP-1 independent pathways.  |  Shah, Z., et al. 2011. Vascul Pharmacol. 55: 2-9. PMID: 21397040
  6. Staphylococcal entertotoxins of the enterotoxin gene cluster (egcSEs) induce nitrous oxide- and cytokine dependent tumor cell apoptosis in a broad panel of human tumor cells.  |  Terman, DS., et al. 2013. Front Cell Infect Microbiol. 3: 38. PMID: 23964349
  7. In vitro biomechanical strain regulation of fibroblast wound healing.  |  Cao, TV., et al. 2013. J Am Osteopath Assoc. 113: 806-18. PMID: 24174502
  8. Vicious inducible nitric oxide synthase-mitochondrial reactive oxygen species cycle accelerates inflammatory response and causes liver injury in rats.  |  Weidinger, A., et al. 2015. Antioxid Redox Signal. 22: 572-86. PMID: 25365698
  9. Specific Afferent Renal Denervation Prevents Reduction in Neuronal Nitric Oxide Synthase Within the Paraventricular Nucleus in Rats With Chronic Heart Failure.  |  Zheng, H., et al. 2018. Hypertension. 72: 667-675. PMID: 30012866
  10. Human monocytic myeloid-derived suppressor cells impair B-cell phenotype and function in vitro.  |  Jaufmann, J., et al. 2020. Eur J Immunol. 50: 33-47. PMID: 31557313
  11. Carbon monoxide activation of delayed rectifier potassium currents of human cardiac fibroblasts through diverse pathways.  |  Bae, H., et al. 2022. Korean J Physiol Pharmacol. 26: 25-36. PMID: 34965993
  12. Ageing and endothelium-mediated vascular dysfunction: the role of the NADPH oxidases.  |  Kwon, OS., et al. 2023. J Physiol. 601: 451-467. PMID: 36416565
  13. Diabetes mellitus increases nitric oxide synthase in penises but not in major pelvic ganglia of rats.  |  Sullivan, ME., et al. 1996. Br J Urol. 77: 329. PMID: 8800921

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

L-NMMA (citrate), 10 mg

sc-364686
10 mg
$57.00

L-NMMA (citrate), 50 mg

sc-364686A
50 mg
$257.00

L-NMMA (citrate), 100 mg

sc-364686B
100 mg
$459.00