N-Propyl-L-arginine

N-Propyl-L-arginine
Names
	Other names 2-Amino-5-[(N'-propylcarbamimidoyl)amino]pentanoic acid
Identifiers
CAS Number	137361-05-8 ;
3D model (JSmol)	Interactive image;
ChEMBL	ChEMBL126713 ; ChEMBL107528 ;
ChemSpider	4234 ; 394346 S ;
PubChem CID	4387; 17753781 R; 447180 S;
	InChI InChI=1S/C9H20N4O2/c1-2-5-12-9(11)13-6-3-4-7(10)8(14)15/h7H,2-6,10H2,1H3,(H,14,15)(H3,11,12,13) Key: AOMXURITGZJPKB-UHFFFAOYSA-N ;
	SMILES CCCNC(=N)NCCCC(N)C(O)=O;
Properties
Chemical formula	C9H20N4O2
Molar mass	216.29 g·mol−1
log P	0.389
Acidity (pKa)	2.512
Basicity (pKb)	11.485
Related compounds
Related alkanoic acids	Methylarginine; Asymmetric dimethylarginine;
Related compounds	Acecarbromal
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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	Infobox references

N-Propyl-L-arginine, or more properly N^G-propyl-L-arginine (NPA), is a selective inhibitor of neuronal nitric oxide synthase (nNOS).

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