N-Propyl-L-arginine

N-Propyl-l-arginine, or more properly N^G-propyl-l-arginine (NPA), is a selective inhibitor of neuronal nitric oxide synthase (nNOS).^[1]

1. Zhang, Henry Q.; Fast, Walter; Marletta, Michael A.; Martasek, Pavel; Silverman, Richard B. (1997-11-01). "Potent and Selective Inhibition of Neuronal Nitric Oxide Synthase by N ω -Propyl- l -arginine". Journal of Medicinal Chemistry. 40 (24): 3869–3870. doi:10.1021/jm970550g. ISSN 0022-2623. PMID 9397167.

N-Propyl-l-arginine

Stereo, skeletal formula of N-propyl-L-arginine (S)
Names
Other names 2-Amino-5-[(N'-propylcarbamimidoyl)amino]pentanoic acid[citation needed]
Identifiers
CAS Number	137361-05-8 Y
3D model (JSmol)	Interactive image
ChEMBL	ChEMBL126713 N ChEMBL107528 N
ChemSpider	4234 N 394346 S N
PubChem CID	4387 17753781 R 447180 S
CompTox Dashboard (EPA)	DTXSID30332245
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) N Key: AOMXURITGZJPKB-UHFFFAOYSA-N N
SMILES CCCNC(=N)NCCCC(N)C(O)=O
Properties
Chemical formula	C9H20N4O2
Molar mass	216.285 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). N verify (what is YN ?) Infobox references