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NOS Inhibitors (NOS Induction & Enzyme Activity)
You are here: Product Lines > Nitric Oxide Pathway > Nitric Oxide Synthases [NOS] / Related Products > NOS Inhibitors (NOS Induction & Enzyme Activity)
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ALX-270-171 Revised 30-Jun-08
Chlorpromazine . hydrochloride
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SYNONYMS 2-Chloro-10-(3-dimethylaminopropyl)phenothiazine . HCl
PRODUCT LINE Signal Transduction
PRODUCT CATEGORY Calmodulin Inhibitors
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ALX-270-171-G001   1 g 22.00 USD Add To Cart
ALX-270-171-G005   5 g 66.00 USD Add To Cart
Product Specification
FORMULA: C17H19ClN2S . HCl
MW: 318.9 . 36.5
CAS NUMBER: 69-09-0
MERCK INDEX: 14: 2185
RTECS: SO1750000
PURITY: ≥98% (HPLC)
APPEARANCE: White to off-white powder.
SOLUBILITY: Soluble in 100% ethanol, methanol or water (50mg/ml).
SHIPPING: AMBIENT
LONG TERM STORAGE: +4°C
USE/STABILITY: Not stable in aqueous solution. We strongly recommend always to use freshly prepared solutions.
HANDLING: Protect from light.
HAZARD: VERY TOXIC.

Product Description
Inhibits calmodulin stimulation of cyclic nucleotide phosphodiesterase. Dopamine antagonist. D2 antagonist. Hantagonist. Inhibits TNF-α production. Potent PLA2 inhibitor. Inhibits nitric oxide synthase (NOS) in mouse brain and prevents lipopolysaccharide induction of NOS in mouse lung. Antipsychotic.
Product Specific Literature References
Chlorpromazine as a substitute for ortho-dianisidine and ortho-tolidine in the determination of chlorine, hemoglobin, and peroxidase activity: H.B. Collier; Clin. Biochem. 7, 331 (1974) Abstract
Drug-protein interactions: binding of chlorpromazine to calmodulin, calmodulin fragments, and related calcium binding proteins: D.R. Marshak, et al.; Biochemistry 24, 144 (1985) Abstract
Selective inhibition of group II phospholipase A2 by quercetin: M. Lindahl & C. Tagesson; Inflammation 17, 573 (1993) Abstract
Chlorpromazine inhibits both the constitutive nitric oxide synthase and the induction of nitric oxide synthase after LPS challenge: M. Palacios, et al.; BBRC 196, 280 (1993) Abstract
Protective effect of calmodulin inhibitors against acute cyanide- induced lethality and convulsions in mice: H. Yamamoto; Toxicol. Lett. 66, 73 (1993) Abstract
Pharmacologic inhibitors of tumor necrosis factor production exert differential effects in lethal endotoxemia and in infection with live microorganisms in mice: M.G. Netea, et al.; J. Infect. Dis. 171, 393 (1995) Abstract
Pharmacological regulation of mitochondrial nitric oxide synthase: A. Boveris, et al.; Methods Enzymol. 359, 328 (2002) Abstract
Brain mitochondrial nitric oxide synthase: in vitro and in vivo inhibition by chlorpromazine: S. Lores-Arnaiz, et al.; Arch. Biochem. Biophys. 430, 170 (2004) Abstract
 
 
ALX-270-182 Revised 02-Jun-06
S-Ethyl-N-[4-(trifluoromethyl)phenyl]isothiourea . hydrochloride
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SYNONYMS ETPI . HCl
TFPI . HCl
PRODUCT LINE Nitric Oxide Pathway
PRODUCT CATEGORY NOS Inhibitors (NOS Induction & Enzyme Activity)
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ALX-270-182-M005   5 mg 40.00 USD Add To Cart
ALX-270-182-M025   25 mg 160.00 USD Add To Cart
Product Specification
FORMULA: C10H11SN2F3 . HCl
MW: 248.3 . 36.5
PURITY: ≥98%
APPEARANCE: White to off-white solid.
SOLUBILITY: Soluble in water (50mg/ml), methanol, 100% ethanol (33mg/ml), DMSO (33mg/ml) or dimethyl formamide (33mg/ml).
SHIPPING: AMBIENT
LONG TERM STORAGE: +4°C

Product Description
Selective inhibitor of neuronal nitric oxide synthase (nNOS; NOS I) relative to inducible nitric oxide synthase (iNOS; NOS II) (115-fold) and endothelial nitric oxide synthase (eNOS; NOS III) (29-fold).
Product Specific Literature References
Substituted N-phenylisothioureas: potent inhibitors of human nitric oxide synthase with neuronal isoform selectivity: B.G. Shearer, et al.; J. Med. Chem. 40, 1901 (1997) Abstract
 
 
ALX-270-199 Revised 03-Jul-07
3-Bromo-7-nitroindazole . sodium salt
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PRODUCT LINE Nitric Oxide Pathway
PRODUCT CATEGORY NOS Inhibitors (NOS Induction & Enzyme Activity)
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ALX-270-199-M005   5 mg 35.00 USD Add To Cart
ALX-270-199-M025   25 mg 95.00 USD Add To Cart
Product Specification
FORMULA: C7H3BrN3O2 . Na
MW: 241.0 . 23.0
PURITY: ≥97%
APPEARANCE: Red solid.
SOLUBILITY: Soluble in DMSO or methanol; insoluble in water.
SHIPPING: AMBIENT
LONG TERM STORAGE: -20°C
HANDLING: Hygroscopic. Protect from light.
HAZARD: TOXIC.

Product Description
Salt form of 3-bromo-7-nitroindazole (Prod. No. ALX-270-009). Potent inhibitor of rat cerebellar nitric oxide synthase (nNOS/NOS I). More potent than 7-nitroindazole (Prod. No. ALX-270-004).
Product Specific Literature References
7-Nitro indazole derivatives are potent inhibitors of brain, endothelium and inducible isoforms of nitric oxide synthase: P.A. Bland-Ward & P.K. Moore; Life Sci. 57, PL131 (1995) Abstract
Evidence for involvement of the neuronal isoform of nitric oxide synthase during induction of long-term potentiation and long-term depression in the rat dentate gyrus in vitro: J. Wu, et al.; Neuroscience 78, 393 (1997) Abstract
Further in vivo studies on attenuating morphine withdrawal: isoform-selective nitric oxide synthase inhibitors differ in efficacy: D.B. Vaupel, et al.; Eur. J. Pharmacol. 324, 11 (1997) Abstract
3-bromo-7-nitroindazole, a neuronal nitric oxide synthase inhibitor, impairs maternal aggression and citrulline immunoreactivity in prairie voles: S.C. Gammie, et al.; Brain Res. 870, 80 (2000) Abstract
Crystal structure of nitric oxide synthase bound to nitro indazole reveals a novel inactivation mechanism: C.S. Raman, et al.; Biochemistry 40, 13448 (2001) Abstract
Effects of selective neuronal nitric oxide synthase inhibition on sleep and wakefulness in the rat: M. Cavas & J.F. Navarro; Prog. Neuropsychopharmacol. Biol. Psychiatry 30, 56 (2006) Abstract
 
 
ALX-270-200 Revised 17-Oct-07
7-Nitroindazole . sodium salt
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SYNONYMS 7-NiNa
PRODUCT LINE Nitric Oxide Pathway
PRODUCT CATEGORY NOS Inhibitors (NOS Induction & Enzyme Activity)
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ALX-270-200-M005   5 mg 25.00 USD Add To Cart
ALX-270-200-M025   25 mg 75.00 USD Add To Cart
ALX-270-200-M100   100 mg 225.00 USD Add To Cart
Product Specification
FORMULA: C7H4N3O2 . Na
MW: 162.2 . 23.0
PURITY: ≥98%
APPEARANCE: Orange to red solid.
SOLUBILITY: Soluble in 100% ethanol, methanol or DMSO.
SHIPPING: AMBIENT
LONG TERM STORAGE: -20°C
HANDLING: Protect from light and moisture.
HAZARD: TOXIC. MAY BE TERATOGENIC. MAY BE MUTAGENIC.

Product Description
A more soluble salt form of 7-nitroindazole. Its higher solubility in artificial cerebrospinal fluid (CSF) permits its use as an inhibitor of nitric oxide synthase (NOS) in rat brain tissue. Provides a useful tool for the study of nitric oxide (NO) activity in the brain. See also 3-bromo-7-nitroindazole . sodium salt (Prod. No. ALX-270-199).
Product Specific Literature References
Increased striatal dopamine efflux in vivo following inhibition of cerebral nitric oxide synthase by the novel monosodium salt of 7-nitro indazole: M.T. Silva, et al.; Br. J. Pharmacol. 114, 257 (1995) Abstract
 
 
ALX-270-203 Revised 11-Jan-07
N-ω-Propyl-L-arginine
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SYNONYMS N5-[Imino(propylamino)methyl]-L-ornithine
PRODUCT LINE Nitric Oxide Pathway
PRODUCT CATEGORY NOS Inhibitors (NOS Induction & Enzyme Activity)
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ALX-270-203-M005   5 mg 72.00 USD Add To Cart
ALX-270-203-M025   25 mg 180.00 USD Add To Cart
Product Specification
FORMULA: C9H20N4O2
MW: 216.3
CAS NUMBER: 137361-05-8
PURITY: ≥98%
APPEARANCE: White to off-white solid
SOLUBILITY: Soluble in PBS, 100% ethanol, DMSO or dimethyl formamide.
SHIPPING: SHIPPED ON BLUE ICE
LONG TERM STORAGE: -20°C
USE/STABILITY: Stable for at least one year when stored at -20 °C.

Product Description
Potent and selective inhibitor of neuronal nitric oxide synthase (nNOS; NOS I) relative to inducible nitric oxide synthase (iNOS; NOS II) (3158-fold) and endothelial nitric oxide synthase (eNOS; NOS III) (149-fold).
Product Specific Literature References
Potent and selective inhibition of neuronal nitric oxide synthase by N-omega-propyl-L-arginine: H.Q. Zhang, et al.; J. Med. Chem. 40, 3869 (1997) Abstract
Mechanism of inactivation of neuronal nitric oxide synthase by N-allyl-L-arginine: H.Q. Zhang, et al.; JACS 119, 10888 (1997)
N(omega)-Nitroarginine-containing dipeptide amides. Potent and highly selective inhibitors of neuronal nitric oxide synthase: H. Huang, et al.; J. Med. Chem. 42, 3147 (1999) Abstract
Conformationally-restricted arginine analogues as alternative substrates and inhibitors of nitric oxide synthases: Y. Lee, et al.; Bioorg. Med. Chem. 7, 1097 (1999) Abstract
Cellular and enzymatic studies of N(omega)-propyl-l-arginine and S-ethyl-N-[4-(trifluoromethyl)phenyl]isothiourea as reversible, slowly dissociating inhibitors selective for the neuronal nitric oxide synthase isoform: G.R. Cooper, et al.; Arch. Biochem. Biophys. 375, 183 (2000) Abstract
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) Abstract; Full Text
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) Abstract; Full Text
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) Abstract; Full Text
The effects of N(omega)-propyl-L-arginine on reperfusion injury of skeletal muscle: C. Gowda, et al.; Nitric Oxide 11, 17 (2004) Abstract
The neuronal selective nitric oxide synthase inhibitor, Nomega-propyl-L-arginine, blocks the effects of phencyclidine on prepulse inhibition and locomotor activity in mice: D. Klamer, et al.; Eur. J. Pharmacol. 503, 103 (2004) Abstract
 
 
ALX-270-211 Revised 07-Jun-06
2-Imino-4-methylpiperidine . acetate
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PRODUCT LINE Nitric Oxide Pathway
PRODUCT CATEGORY NOS Inhibitors (NOS Induction & Enzyme Activity)
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ALX-270-211-M005   5 mg 30.00 USD Add To Cart
ALX-270-211-M025   25 mg 90.00 USD Add To Cart
Product Specification
FORMULA: C6H12N2 . CH3COOH
MW: 112.2 . 60.2
CAS NUMBER: 165383-72-2
PURITY: ≥98%
APPEARANCE: White to off-white crystalline solid.
SOLUBILITY: Soluble in PBS, 100% ethanol, methanol, DMSO or dimethyl formamide.
SHIPPING: AMBIENT
LONG TERM STORAGE: -20°C

Product Description
Specific inhibitor of inducible nitric oxide synthase (iNOS; NOS II).
 
 
ALX-270-216 Revised 04-Aug-08
Vinyl-L-NIO
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SYNONYMS N5-(1-Imino-3-butenyl)-L-ornithine
L-VNIO
PRODUCT LINE Nitric Oxide Pathway
PRODUCT CATEGORY NOS Inhibitors (NOS Induction & Enzyme Activity)
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ALX-270-216-M005   5 mg 70.00 USD Add To Cart
ALX-270-216-M025   25 mg 245.00 USD Add To Cart
Product Specification
FORMULA: C9H17N3O2 . 2HCl
MW: 199.3 . 73.0
PURITY: ≥95%
SOLUBILITY: Soluble in water.
SHIPPING: AMBIENT
LONG TERM STORAGE: +4°C
HANDLING: Very hygroscopic.

Product Description
Very selective and potent neuronal nitric oxide synthase (nNOS/NOS I) inhibitor.
Product Specific Literature References
N5-(1-Imino-3-butenyl)-L-ornithine. A neuronal isoform selective mechanism-based inactivator of nitric oxide synthase: B. R. Babu & O.W. Griffith; J. Biol. Chem. 273, 8882 (1998) Abstract; Full Text
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) Abstract; Full Text
Structural characterization and kinetics of nitric-oxide synthase inhibition by novel N5-(iminoalkyl)- and N5-(iminoalkenyl)-ornithines: L.E. Bretscher, et al.; J. Biol. Chem. 278, 46789 (2003) Abstract; Full Text
Myocardial effects of nitric oxide, NO. Clinical and experimental evidence: C. Heymes, et al.; Bull. Acad. Natl. Med. 189, 893 (2005), [Article in French] Abstract
Neuronal nitric-oxide synthase inhibition facilitates adrenergic neurotransmission in rat mesenteric resistance arteries: Y. Hatanaka, et al.; J. Pharmacol. Exp. Ther. 316, 490 (2006) Abstract
Ischemia/reperfusion-induced death of cardiac myocytes: possible involvement of nitric oxide in the coordination of ATP supply and demand during ischemia: K. Kawahara, et al.; J. Mol. Cell Cardiol. 40, 35 (2006) Abstract
Discoordinate regulation of renal nitric oxide synthase isoforms in ovariectomized mRen2.Lewis rats: L.M. Yamaleyeva, et al.; Am. J. Physiol. Regul. Integr. Comp. Physiol. 292, R819 (2007) Abstract
General Literature References
Design of isoform-selective inhibitors of nitric oxide synthase: B.R. Babu & O.W. Griffith; Curr. Opin. Chem. Biol. 2, 491 (1998) Abstract
 
 
ALX-270-252 Revised 03-Mar-05
MEG . sodium succinate
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SYNONYMS Mercaptoethylguanidine . sodium succinate
PRODUCT LINE Nitric Oxide Pathway
PRODUCT CATEGORY NOS Inhibitors (NOS Induction & Enzyme Activity)
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ALX-270-252-M010   10 mg 95.00 USD Add To Cart
Product Specification
FORMULA: C3H10N3S . C4H4O4Na
MW: 120.2 . 139.1
PURITY: ≥90%
APPEARANCE: White solid.
SOLUBILITY: Soluble in water.
SHIPPING: SHIPPED ON BLUE ICE
LONG TERM STORAGE: -20°C
HANDLING: Keep under inert gas. Keep cool and dry. Protect from moisture.

Product Description
Inhibitor of inducible nitric oxide synthase (iNOS; NOS II). Peroxynitrite scavenger.
Product Specific Literature References
Spontaneous rearrangement of aminoalkylisothioureas into mercaptoalkylguanidines, a novel class of nitric oxide synthase inhibitors with selectivity towards the inducible isoform: G.J. Southan, et al.; Br. J. Pharmacol. 117, 619 (1996) Abstract
The inhibitory effects of mercaptoalkylguanidines on cyclo-oxygenase activity: B. Zingarelli, et al.; Br. J. Pharmacol. 120, 357 (1997) Abstract
Mercaptoethylguanidine and guanidine inhibitors of nitric-oxide synthase react with peroxynitrite and protect against peroxynitrite-induced oxidative damage: C. Szabó, et al.; J. Biol. Chem. 272, 9030 (1997) Abstract; Full Text
Antiinflammatory effects of mercaptoethylguanidine, a combined inhibitor of nitric oxide synthase and peroxynitrite scavenger, in carrageenan-induced models of inflammation: S. Cuzzocrea, et al.; Free Radic. Biol. Med. 24, 450 (1998) Abstract
Protective effects of MEG, a selective inhibitor of inducible nitric oxide synthase, in ligature-induced periodontitis in the rat [published erratum appears in Br. J. Pharmacol. 123, 741 (1998)]: Z. Lohinai, et al.; Br. J. Pharmacol. 123, 353 (1998) Abstract
Mercaptoethylguanidine, a combined inhibitor of nitric oxide synthase and peroxynitrite scavenger, reduces trinitrobenzene sulfonic acid-induced colonic damage in rats: B. Zingarelli, et al.; J. Pharmacol. Exp. Ther. 287, 1048 (1998) Abstract
Modulation of peroxynitrite- and hypochlorous acid-induced inactivation of alpha1-antiproteinase by mercaptoethylguanidine: M. Whiteman, et al.; Br. J. Pharmacol. 126, 1646 (1999) Abstract
Further Categories Containing This Product:
Peroxynitrite / Scavengers / Detection
 
 
ALX-270-254 Revised 22-Sep-08
Carnosol
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SYNONYMS 1,3,4,9,10,10aS-Hexahydro-5,6-dihydroxy-1,1-dimethyl-7-isopropyl-2H-9S,4aR-(epoxymethano)phenanthren-12-one
PRODUCT LINE Natural Products / Antibiotics
PRODUCT CATEGORY Natural Products - Antioxidants
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ALX-270-254-M001   1 mg 60.00 USD Add To Cart
ALX-270-254-M005   5 mg 269.00 USD Add To Cart
Product Specification
FORMULA: C20H26O4
MW: 330.4
CAS NUMBER: 5957-80-2
SOURCE/HOST: Isolated from Rosmarinus officinalis.
PURITY: ≥96%
APPEARANCE: White to beige solid.
SOLUBILITY: Soluble in 100% ethanol (8mg/ml), DMSO (250mg/ml) or dimethyl formamide (35mg/ml); sparingly soluble in aqueous PBS, pH 7.2 (<30μg/ml).
SHIPPING: SHIPPED ON BLUE ICE
LONG TERM STORAGE: -20°C
USE/STABILITY: Stable for at least 1 year when stored at -20°C. We do not recommend storing aqueous solutions for more than one day.
HANDLING: Protect from light.

Product Description
Naturally occurring phenolic compound with antioxidant and anti-inflammatory properties. Suppresses nitric oxide (NO) production and inducible nitric oxide synthase (iNOS; NOS II) gene expression by inhibiting NF-κB activation. Inhibits lipid peroxidation. Antimicrobial. Anticarcinogenic. Inhibits cyclooxygenase-2 (COX-2).
Product Specific Literature References
Antioxidant and pro-oxidant properties of active rosemary constituents: carnosol and carnosic acid: O.I. Aruoma, et al.; Xenobiotica 22, 257 (1992) Abstract
Effects of three dietary phytochemicals from tea, rosemary and turmeric on inflammation-induced nitrite production: M.M. Chan, et al.; Cancer Lett. 96, 23 (1995) Abstract
Inhibition of lipid peroxidation and superoxide generation by diterpenoids from Rosmarinus officinalis: H. Haraguchi, et al.; Planta Med. 61, 333 (1995) Abstract
Inhibition by rosemary and carnosol of 7,12-dimethylbenz[a]anthracene (DMBA)-induced rat mammary tumorigenesis and in vivo DMBA-DNA adduct formation: K. Singletary, et al.; Cancer Lett. 104, 43 (1996) Abstract
Development of in vitro models for cellular and molecular studies in toxicology and chemoprevention: K. Macé, et al.; Arch. Toxicol. Suppl. 20, 227 (1998) Abstract
Carnosol, an antioxidant in rosemary, suppresses inducible nitric oxide synthase through down-regulating nuclear factor-kappaB in mouse macrophages: A.H. Lo, et al.; Carcinogenesis 23, 983 (2002) Abstract
Carnosic acid and carnosol, phenolic diterpene compounds of the labiate herbs rosemary and sage, are activators of the human peroxisome proliferator-activated receptor gamma: O. Rau, et al.; Planta Med. 72, 881 (2006) Abstract
Potentiation of antimicrobial activity of aminoglycosides by carnosol from Salvia officinalis: K. Horiuchi, et al.; Biol. Pharm. Bull. 30, 287 (2007) Abstract