1. Immunology/Inflammation
    Metabolic Enzyme/Protease
  2. NO Synthase
    Endogenous Metabolite
  3. L-Arginine

L-Arginine (Synonyms: (S)-(+)-Arginine)

Cat. No.: HY-N0455 Purity: >98.0%
Handling Instructions

L-Arginine is the nitrogen donor for synthesis of nitric oxide, a potent vasodilator that is deficient during times of sickle cell crisis.

For research use only. We do not sell to patients.

L-Arginine Chemical Structure

L-Arginine Chemical Structure

CAS No. : 74-79-3

Size Price Stock Quantity
10 mM * 1  mL USD 55 In-stock
Estimated Time of Arrival: December 31
500 mg USD 50 In-stock
Estimated Time of Arrival: December 31
1 g USD 60 In-stock
Estimated Time of Arrival: December 31
5 g USD 70 In-stock
Estimated Time of Arrival: December 31
10 g   Get quote  
50 g   Get quote  

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Customer Review

Based on 1 publication(s) in Google Scholar

Other Forms of L-Arginine:

Top Publications Citing Use of Products

Publications Citing Use of MCE L-Arginine

  • Biological Activity

  • Purity & Documentation

  • References

  • Customer Review


L-Arginine is the nitrogen donor for synthesis of nitric oxide, a potent vasodilator that is deficient during times of sickle cell crisis. Target: Others L-Arginine is an α-amino acid. It was first isolated in 1886. The L-form is one of the 20 most common natural amino acids. At the level of molecular genetics, in the structure of the messenger ribonucleic acid mRNA, CGU, CGC, CGA, CGG, AGA, and AGG, are the triplets of nucleotide bases or codons that code for arginine during protein synthesis. In mammals, arginine is classified as a semiessential or conditionally essential amino acid, depending on the developmental stage and health status of the individual. L-Arginine is associated with a decrease in cardiac index while stroke index is maintained in patients with severe sepsis. Resolution of shock at 72 hours is achieved by 40% and 24% of the patients in the L-Arginine and placebo cohorts, respectively. L-Arginine (450 mg/kg during a 15-minute period) amplifies and sustains the hyperemia (38%) and increases absolute brain blood flow after eNOS upregulation by chronic simvastatin treatment (2 mg/kg subcutaneously, daily for 14 days) in SV-129 mice.

IC50 & Target

Human Endogenous Metabolite


Clinical Trial
Molecular Weight







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Room temperature in continental US; may vary elsewhere.

Powder -20°C 3 years
  4°C 2 years
In solvent -80°C 6 months
  -20°C 1 month
Solvent & Solubility
In Vitro: 

H2O : 50 mg/mL (287.03 mM; Need ultrasonic)

Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 5.7405 mL 28.7026 mL 57.4053 mL
5 mM 1.1481 mL 5.7405 mL 11.4811 mL
10 mM 0.5741 mL 2.8703 mL 5.7405 mL
*Please refer to the solubility information to select the appropriate solvent.

Purity: >98.0%

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  • Molarity Calculator

  • Dilution Calculator

The molarity calculator equation

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass   Concentration   Volume   Molecular Weight *
= × ×

The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2


L-Arginine(S)-(+)-ArginineNO SynthaseEndogenous MetaboliteNitric oxide synthasesNOSInhibitorinhibitorinhibit

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