NG-Hydroxy-L-arginine acetate salt

NOHA acetate salt
Empirical Formula (Hill Notation):
C6H14N4O3 · C2H4O2
CAS Number:
Molecular Weight:
MDL number:
PubChem Substance ID:
Pricing and availability is not currently available.


≥98% (TLC)




204  °C


acetic acid: 10 mg/mL, clear, colorless to faintly yellow

storage temp.


SMILES string




InChI key



1, 5 mg in glass bottle

Biochem/physiol Actions

Intermediate in the conversion of arginine to NO and citrulline by NO synthase.
NG-Hydroxy-L-arginine acts as a physiological inhibitor of arginase.

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves


NONH for all modes of transport

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis
Certificate of Origin
R A Pufahl et al.
Biochemistry, 34(6), 1930-1941 (1995-02-14)
The ability of murine macrophage nitric oxide synthase (NOS) to utilize peroxides in place of O2 and NADPH was investigated using hydrogen peroxide (H2O2), tert-butylhydroperoxide, and cumene hydroperoxide with both L-arginine and NG-hydroxy-L-arginine (L-NHA) as substrates. Of the three peroxides...
T Pera et al.
The Journal of pharmacology and experimental therapeutics, 349(2), 229-238 (2014-02-25)
Airway inflammation and remodeling are major features of chronic obstructive pulmonary disease (COPD), whereas pulmonary hypertension is a common comorbidity associated with a poor disease prognosis. Recent studies in animal models have indicated that increased arginase activity contributes to features...
F Daghigh et al.
Biochemical and biophysical research communications, 202(1), 174-180 (1994-07-15)
NG-hydroxy-L-arginine, an intermediate in the biosynthesis of nitric oxide (NO), has been found to be a uniquely potent competitive inhibitor of rat liver arginase. Among previously reported inhibitors of arginase and the eight arginine analogs tested herein, only NG-hydroxy-L-arginine was...
K L Campos et al.
The Journal of biological chemistry, 270(4), 1721-1728 (1995-01-27)
The nitric oxide synthase-catalyzed conversion of L-arginine to L-citrulline and nitric oxide is known to be the sum of two partial reactions: oxygenation of arginine to N-hydroxyarginine, followed by oxygenation of N-hydroxyarginine to citrulline and nitric oxide. Whereas the conversion...
Alexander Bollenbach et al.
Analytical biochemistry, 577, 59-66 (2019-04-28)
l-Homoarginine (hArg) is biosynthesized from l-arginine (Arg) and l-lysine (Lys) by arginine:glycine amidinotransferase (AGAT). AGAT also catalyzes the formation of guanidinoacetate (GAA) from Arg and glycine (Gly). GAA is converted to creatine (N-methyl guanidinoacetate) by guanidinoacetate N-methyl-transferase (GAMT). Low circulating...

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