Empirical Formula (Hill Notation):
CAS Number:
Molecular Weight:
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Pricing and availability is not currently available.






DMF: 50 mg/mL, clear, yellow to orange

storage temp.


SMILES string




InChI key


Gene Information

human ... NOS1(4842), NOS2(4843), NOS2B(201288), NOS2C(645740), NOS3(4846)
rat ... Nos1(24598)

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1, 5 g in poly bottle

Biochem/physiol Actions

Selective inhibitor of nitric oxide synthase from mouse brain.

Features and Benefits

This compound is also offered as part of Sigma′s Library of Pharmacologically Active Compounds (LOPAC®1280), a biologically annotated collection of high-quality, ready-to-screen compounds. Click here to learn more.
This compound is featured on the Nitric Oxide Synthases page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.

Legal Information

LOPAC is a registered trademark of Sigma-Aldrich Co. LLC


Skull and crossbonesHealth hazard

Signal Word


Hazard Statements

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Hazard Codes


Risk Statement


Safety Statement



UN 2811 6.1 / PGIII

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis
Certificate of Origin
Morten Hedetoft et al.
Undersea & hyperbaric medicine : journal of the Undersea and Hyperbaric Medical Society, Inc, 45(3), 335-350 (2018-07-22)
Experiments have shown that hyperbaric oxygen (HBO2) therapy reduces cyanide-induced cerebral distress. The exact mechanism behind HBO2's neuroprotective effect is unknown, but has been proposed to be mediated by an increased neuronal nitric oxide (NO) bioavailability, which may compete with...
Dongmei Wang et al.
Experimental neurology, 239, 111-119 (2012-10-16)
We have previously shown that intrathecal administration of the adrenomedullin (AM) receptor antagonist AM(22-52) produces a long-lasting anti-hyperalgesia effect. This study examined the hypothesis that AM recruits other pronociceptive mediators in complete Freund's adjuvant (CFA)-induced inflammation. Injection of CFA in...
Kazuhiro Takuma et al.
European journal of pharmacology, 683(1-3), 166-173 (2012-03-28)
Long-term treatment with the dopamine precursor levodopa (l-DOPA) frequently induces dyskinesia in Parkinson's disease patients, which is a major complication of this therapy. Previous studies using animal models show that repeated administration of l-DOPA results in alterations of some signaling...
Geoffrey E Ciarlone et al.
American journal of physiology. Cell physiology, 311(6), C1014-C1026 (2016-10-14)
Central CO2-chemosensitive neurons in the caudal solitary complex (cSC) are stimulated not only by hypercapnic acidosis, but by hyperoxia as well. While a cellular mechanism for the CO2 response has yet to be isolated, previous data show that a redox-sensitive...
Anita J Turner et al.
American journal of physiology. Renal physiology, 313(4), F864-F873 (2017-07-07)
Via developmental programming, prenatal perturbations, such as exposure to glucocorticoids and maternal malnutrition alter kidney development and contribute to the development of hypertension. To examine the possibility that alterations in tubuloglomerular feedback (TGF) contribute to the development of hypertension in...

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