Technical Data
1400W dihydrochloride (N-(3-(Aminomethyl)benzyl)acetamidine . 2HCl)
Biochemicals Storage: +4°C/+4°CShipping: Blue Ice
A slow, tight binding and highly selective inhibitor of iNOS (inducible nitric oxide synthase/NOS II) (Kd < 7 nM). Weak and reversible inhibition of nNOS (neuronal nitric oxide synthase/NOS I) (Ki < 2) and eNOS (endothelial nitric oxide synthase/NOS III) (Ki < 50 µM). Inhibits tumor growth. Increases vasoconstriction to noradrenaline. Improves contractile function. Improves stroke outcome and decreases glutamate release. Anti-inflammatory. Review.

Storage and Stability:
Short-term Storage: +4°C
Long-term Storage: +4°C
Stable for at least 2 years after receipt when stored at +4°C.

CAS Number:

Molecular Formula:
C10H15N3 . 2HCl

Molecular Weight:
Purity: >98% (NMR)

Important Note: This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.
Product Reference:
1400W is a slow, tight binding, and highly selective inhibitor of inducible nitric-oxide synthase in vitro and in vivo: E.P. Garvey, et al.; J. Biol. Chem. 272, 4959 (1997)
Selective inhibition of inducible nitric oxide synthase inhibits tumor growth in vivo: studies with 1400W, a novel inhibitor: L.L. Thomsen, et al.; Cancer Res. 57, 3300 (1997)
Actions of isoform-selective and non-selective nitric oxide synthase inhibitors on endotoxin-induced vascular leakage in rat colon: F. Laszlo & B.J.R. Whittle; Eur. J. Pharmacol. 334, 99 (1997)
The inhibitory potency and selectivity of arginine substrate site nitric-oxide synthase inhibitors is solely determined by their affinity toward the different isoenzymes: R. Boer, et al.; Mol. Pharmacol. 58, 1026 (2000)
Nitric oxide synthases: structure, function and inhibition: W.K. Alderton, et al.; Biochem. J. 357, 593 (2001)
Structural basis for the specificity of the nitric-oxide synthase inhibitors W1400 and Nomega-propyl-L-Arg for the inducible and neuronal isoforms: R. Fedorov, et al.; J. Biol. Chem. 278, 45818 (2003)
Increased vasoconstriction to noradrenaline by 1400W, inhibitor of iNOS, in rats with streptozotocin-induced diabetes: X. Cheng & C.C. Pang; Eur. J. Pharmacol. 484, 263 (2004)
Inhibition of iNOS with 1400W improves contractile function and alters nos gene and protein expression in reperfused skeletal muscle: P. Patel, et al.; Microsurgery 24, 324 (2004)
Inhibition of iNOS activity by 1400W decreases glutamate release and ameliorates stroke outcome after experimental ischemia: F.J. Perez-Asensio, et al.; Neurobiol. Dis. 18, 375 (2005)
Selective iNOS inhibitor 1400W enhances anti-catabolic IL-10 and reduces destructive MMP-10 in OA cartilage. Survey of the effects of 1400W on inflammatory mediators produced by OA cartilage as detected by protein antibody array: K. Järvinen, et al.; Clin. Exp. Rheumatol. 26, 275 (2008)

Intended for research use only. Not for use in human, therapeutic, or diagnostic applications.