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Oxidative Stress
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ALX-201-219 Revised 22-Mar-07
BiP (mouse) (recombinant)
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SYNONYMS GRP78 (mouse) (recombinant)
Glucose Regulated Protein 78 (mouse) (recombinant)
PRODUCT LINE Stress & Heat Shock Proteins
PRODUCT CATEGORY HSP70/DnaK/Related Products
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ALX-201-219-C025   25 µg 170.00 USD Add To Cart
Product Specification
SOURCE/HOST: Produced in E. coli.
PURITY: ≥99% (SDS-PAGE; MS)
FORMULATION: Liquid. In 50mM HEPES, pH 7.5, containing 150mM KCl and 10mM MgCl2.
APPLICATION: Western Blot
SHIPPING: SHIPPED ON DRY ICE
SHORT TERM STORAGE: +4°C
LONG TERM STORAGE: -80°C
HANDLING: For maximum product recovery after thawing, centrifuge the vial before opening the cap. Avoid freeze/thaw cycles.
Product Specific Literature References
Influence of the oxidoreductase ER57 on the folding of an antibody fab fragment: M. Mayer, et al.; J. Mol. Biol. 341, 1077 (2004) Abstract
Further Categories Containing This Product:
Endoplasmatic Reticulum Stress • Recombinant Proteins/Fusion Proteins
 
 
ALX-430-141 Revised 14-Nov-06
BMPO (high purity)
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SYNONYMS 5-tert-Butoxycarbonyl-5-methyl-1-pyrroline-N-oxide (high purity)
PRODUCT LINE Oxidative Stress
PRODUCT CATEGORY Spin Traps, Spin Probes & Spin Labels
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ALX-430-141-M010   10 mg 70.00 USD Add To Cart
ALX-430-141-M050   50 mg 280.00 USD Add To Cart
Product Specification
FORMULA: C10H17NO3
MW: 199.3
PURITY: ≥99% (1H-NMR, EPR)
APPEARANCE: White to off-white crystalline solid.
SOLUBILITY: Soluble in water.
SHIPPING: SHIPPED ON BLUE ICE
LONG TERM STORAGE: -20°C
HANDLING: Protect from moisture.

Product Description
Nitrone spin trap for the specific in vivo or in vitro detection of short-lived superoxide, hydroxyl and thiyl radicals. Forms distinguishable adducts which can be measured by EPR spectroscopy. Unlike with DMPO, the superoxide adduct does not decay into a hydroxyl adduct and it has a much longer half-life (t1/2=23min). Low paramagnetic impurities. No further purification required.
Product Specific Literature References
Synthesis and biochemical applications of a solid cyclic nitrone spin trap: a relatively superior trap for detecting superoxide anions and glutathiyl radicals: H. Zhao, et al.; Free Radic. Biol. Med. 31, 599 (2001) Abstract
Spin traps: in vitro toxicity and stability of radical adducts: N. Khan, et al.; Free Radic. Biol. Med. 34, 1473 (2003) Abstract
Detection and characterization of the product of hydroethidine and intracellular superoxide by HPLC and limitations of fluorescence: H. Zhao, et al.; PNAS 102, 5727 (2005) Abstract
Evaluation of spin trapping agents and trapping conditions for detection of cell-generated reactive oxygen species: H. Shi, et al.; Arch. Biochem. Biophys. 437, 59 (2005) Abstract
 
 
ALX-152-006 Revised 23-Jan-07
Bradykinin
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PRODUCT LINE Neurobiology
PRODUCT CATEGORY Bradykinin Receptor/Related Products
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ALX-152-006-M005   5 mg 22.00 USD Add To Cart
ALX-152-006-M025   25 mg 86.00 USD Add To Cart
Product Specification
SEQUENCE: H-Arg-Pro-Pro-Gly-Phe-Ser-Pro-Phe-Arg-OH
FORMULA: C50H73N15O11
MW: 1060.3
CAS NUMBER: 5979-11-3
MERCK INDEX: 14: 1359
PURITY: ≥98% (HPLC)
APPEARANCE: White to off-white solid.
SOLUBILITY: Soluble in 5% acetic acid.
SHIPPING: AMBIENT
LONG TERM STORAGE: -20°C
HANDLING: Protect from light.
Product Description
Activator of eNOS (NOS III).
Product Specific Literature References
Different activation of L-arginine pathway by bradykinin, serotonin, and clonidine in coronary arteries: V. Richard, et al.; Am. J. Physiol. 259, H1433 (1990) Abstract
Bradykinin and ATP stimulate L-arginine uptake and nitric oxide release in vascular endothelial cells: R.G. Bogle, et al.; BBRC 180, 926 (1991) Abstract
Activation of a small-conductance Ca(2+)-dependent K+ channel contributes to bradykinin-induced stimulation of nitric oxide synthesis in pig aortic endothelial cells: K. Groschner, et al.; Biochim. Biophys. Acta 1137, 162 (1992) Abstract
G proteins in aortic endothelial cells and bradykinin-induced formation of nitric oxide: J. Gil-Longo, et al.; Eur. J. Pharmacol. 247, 119 (1993) Abstract
Simultaneous measurements of Ca2+ and nitric oxide in bradykinin-stimulated vascular endothelial cells: L.A. Blatter, et al.; Circ. Res. 76, 922 (1995) Abstract; Full Text
Biosynthesis of endothelium-derived nitric oxide by bradykinin as endogenous precursor: A.R. Volpe, et al.; Immunopharmacology 33, 287 (1996) Abstract
Nitric oxide as mediator of bradykinin-induced pancreatic circulatory and metabolic responses: W.W. Pawlik, et al.; J. Physiol. Pharmacol. 48, 751 (1997) Abstract
Bradykinin-regulated interactions of the mitogen-activated protein kinase pathway with the endothelial nitric-oxide synthase: S.G. Bernier, et al.; J. Biol. Chem. 275, 30707 (2000) Abstract; Full Text
Reciprocal phosphorylation and regulation of endothelial nitric-oxide synthase in response to bradykinin stimulation: M.B. Harris, et al.; J. Biol. Chem. 276, 16587 (2001) Abstract; Full Text
Bradykinin down-regulates, whereas arginine analogs up-regulates, endothelial nitric-oxide synthase expression in coronary endothelial cells: N.D. Vaziri, et al.; J. Pharmacol. Exp. Ther. 313, 121 (2005) Abstract; Full Text
Bradykinin mediates phosphorylation of eNOS in odontoblasts: Y. Korkmaz, et al.; J. Dent. Res. 85, 536 (2006) Abstract
Further Categories Containing This Product:
NOS Regulation • Cell Stress, Oxidative Stress & Redox Signalling Other Products • Peptides
 
 
ALX-385-029 Revised 08-Apr-08
4’-Bromoflavone
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SYNONYMS 4’-Bromo-2-phenylbenzopyran
4’-Bromo-2-phenyl-4H-1-benzopyran-4-one
PRODUCT LINE Natural Products / Antibiotics
PRODUCT CATEGORY Flavonoids/Related Products
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ALX-385-029-G001   1 g 90.00 USD Add To Cart
Product Specification
FORMULA: C15H9BrO2
MW: 301.1
SOURCE/HOST: Synthetic.
PURITY: ≥98%
APPEARANCE: White to off-white solid.
SHIPPING: AMBIENT
LONG TERM STORAGE: -20°C
HAZARD: IRRITANT.

Product Description
Chemopreventive compound. Potent inducer of phase II detoxifying enzymes. Quininone reductase and glutathione S-transferase in cell culture and different tissues of rats. Aryl hydrocarbon hydroxylase inducer.
Product Specific Literature References
Simple vs. complex inheritance of inducible aryl hydrocarbon hydroxylase in mouse tissues: K. Burki, et al.; Biochem. Genet. 13, 417 (1975) Abstract
Cancer chemopreventive activity mediated by 4’-bromoflavone, a potent inducer of phase II detoxification enzymes: L.L. Song, et al.; Cancer Res. 59, 578 (1999) Abstract
Further Categories Containing This Product:
Respiratory Chain Other Products • Natural Products - Chemopreventive Agents
 
 
ALX-350-246 Revised 07-Mar-08
Butein
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SYNONYMS 2',3,4,4'-Tetrahydroxychalcone
PRODUCT LINE Natural Products / Antibiotics
PRODUCT CATEGORY Natural Products - Protein Kinase Inhibitors
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ALX-350-246-M010   10 mg 190.00 USD Add To Cart
Product Specification
FORMULA: C15H12O5
MW: 272.3
CAS NUMBER: 487-52-5
PURITY: ≥98% (HPLC)
APPEARANCE: Yellow solid.
SOLUBILITY: Soluble in DMSO (>50mg/ml) or methanol; insoluble in water.
SHIPPING: AMBIENT
LONG TERM STORAGE: -20°C
HANDLING: Protect from light. Keep cool and dry under inert gas.
IDENTITY: Identity determined by 1H-NMR, 13C-NMR and MS.

Product Description
Plant polyphenol that acts as a specific tyrosine kinase inhibitor. Potently inhibits the tyrosine kinase activity of the EGF receptor and p60c-src. Potent antioxidant and anti-inflammatory agent. Inhibits glutathione reductase and rat liver glutathione S-transferase. Activator of human deacetylase SIRT1. Inhibits aromatase, showing chemopreventive properties. Directly inhibits IKK.
Product Specific Literature References
Inhibition of 12-O-tetradecanoylphorbol-13-acetate-mediated epidermal ornithine decarboxylase induction and skin tumor promotion by new lipoxygenase inhibitors lacking protein kinase C inhibitory effects: E. Aizu, et al.; Carcinogenesis 7, 1809 (1986) Abstract
Protective effects of hydroxychalcones on free radical-induced cell damage: S. Sogawa, et al.; Biol. Pharm. Bull. 17, 251 (1994) Abstract
Cytotoxic effect of butein on human colon adenocarcinoma cell proliferation: C.C. Yit & N.P. Das; Cancer Lett. 82, 65 (1994) Abstract
Inhibitory effects of plant polyphenols on rat liver glutathione S-transferase: K. Zhang & N.P. Das; Biochem. Pharmacol. 47, 2063 (1994) Abstract
Endothelium-dependent relaxation of rat aorta by butein, a novel cyclic AMP-specific phosphodiesterase inhibitor: S.M. Yu, et al.; Eur. J. Pharmacol. 280, 69 (1995) Abstract
Butein (3,4,2',4'-tetrahydroxychalcone) ameliorates experimantal anti-glomerular basement membrane antibody-associated glomerulonephritis (3): K. Hayashi, et al.; Eur. J. Pharmacol. 316, 297 (1996) Abstract
Inhibition of glutathione reductase by plant polyphenols: K. Zhang, et al.; Biochem. Pharmacol 54, 1047 (1997) Abstract
Butein, a specific protein tyrosine kinase inhibitor: E.-B. Yang, et al.; BBRC 245, 435 (1998) Abstract
Antioxidant properties of butein isolated from Dalbergia odorifera: Z.J. Cheng, et al.; Biochim. Biophys. Acta 1392, 291 (1998) Abstract
Flavonoids inhibit cell growth and induce apoptosis in B16 melanoma 4A5 cells: K. Iwashita, et al.; Biosci. Biotechnol. Biochem. 64, 1813 (2000) Abstract
Butein, a plant polyphenol, induces apoptosis concomitant with increased caspase-3 activity, decreased Bcl-2 expression and increased Bax expression in HL-60 cells: N.Y. Kim, et al.; Pharmacol. Toxicol. 88, 261 (2001) Abstract
Small molecule activators of sirtuins extend Saccharomyces cerevisiae lifespan: K.T. Howitz, et al.; Nature 425, 191 (2003) Abstract
The plant polyphenol butein inhibits testosterone-induced proliferation in breast cancer cells expressing aromatase: Y. Wang, et al.; Life Sci. 77, 39 (2005) Abstract
Butein, a tetrahydroxychalcone, inhibits nuclear factor (NF)-kappaB and NF-kappaB-regulated gene expression through direct inhibition of IkappaBalpha kinase beta on cysteine 179 residue: M.K. Pandey, et al.; J. Biol. Chem. 282, 17340 (2007) Abstract
Further Categories Containing This Product:
Tyrosine Kinase Inhibitors • Glutathione S-Transferase • Natural Products - Anti-inflammatory Agents • Phosphodiesterases/Related Products • IkB Kinases [IKKs]/Related Products • EGFR Kinase Inhibitors • Glutathione/Related Products • Natural Products - Chemopreventive Agents • Natural Products - Antioxidants • Flavonoids/Related Products
 
 
ALX-270-231 Revised 28-Feb-08
Caffeic acid
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SYNONYMS 3-(3,4-Dihydroxyphenyl)-2-propenoic acid
PRODUCT LINE Natural Products / Antibiotics
PRODUCT CATEGORY Natural Products - Anti-inflammatory Agents
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ALX-270-231-M250   250 mg 10.00 USD Add To Cart
ALX-270-231-G001   1 g 14.00 USD Add To Cart
Product Specification
FORMULA: C9H8O4
MW: 180.2
CAS NUMBER: 331-39-5
MERCK INDEX: 14: 1635
SOURCE/HOST: Synthetic.
PURITY: ≥97%
APPEARANCE: Off-white to brown crystalline solid.
SOLUBILITY: Soluble in 100% ethanol, DMSO or dimethyl formamide; also soluble in PBS, pH 7.2.
SHIPPING: AMBIENT
LONG TERM STORAGE: +20°C
USE/STABILITY: Stable for at least 2 years when stored at +20°C. Organic stock solutions are stable for at least 6 months when stored at –20 °C. Store aqueous solutions of the product on ice and use within 12 hours of preparation.

Product Description

Naturally occuring phenolic compound found in many fruits, vegetables and herbs, including coffee. Shows anti-tumor, antiviral, antioxidant and anti-inflammatory effects. Inhibitor of 5- and 12-lipoxygenase (LO).
Product Specific Literature References
Caffeic acid is a selective inhibitor for leukotriene biosynthesis: Y. Koshihara, et al.; Biochim. Biophys. Acta 792, 92 (1984) Abstract
Inhibitory effect of caffeic acid esters on azoxymethane-induced biochemical changes and aberrant crypt foci formation in rat colon: C.V. Rao, et al.; Cancer Res. 53, 4182 (1993) Abstract
Inhibition of arachidonate lipoxygenase activities by 2-(3,4-dihydroxyphenyl)ethanol, a phenolic compound from olives: N. Kohyama, et al.; Biosci. Biotech. Biochem. 61, 347 (1997) Abstract
Caffeic acid derivatives: in vitro and in vivo anti-inflammatory properties: F.M. da Cunha, et al.; Free Radic. Res. 38, 1241 (2004) Abstract
Novel and therapeutic effect of caffeic acid and caffeic acid phenyl ester on hepatocarcinoma cells: complete regression of hepatoma growth and metastasis by dual mechanism: T.W. Chung, et al.; FASEB J. 18, 1670 (2004) Abstract
Anti-HIV activities of natural antioxidant caffeic acid derivatives: toward an antiviral supplementation diet: F. Bailly & P. Cotelle; Curr. Med. Chem. 12, 1811 (2005) Abstract
Related Products
Further Categories Containing This Product:
Tyrosine Kinase Inhibitors • Natural Products - Chemopreventive Agents • Natural Products - Antiviral/anti-HIV Agents • Active Substances from Fruit and Vegetables • Lipoxygenases/Related Products • Natural Products - Antioxidants
 
 
ALX-350-226 Revised 07-Apr-08
Caffeic acid methyl ester
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SYNONYMS Methyl caffeate
PRODUCT LINE Natural Products / Antibiotics
PRODUCT CATEGORY Natural Products - Protein Kinase Inhibitors
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ALX-350-226-M050   50 mg 60.00 USD Add To Cart
Product Specification
FORMULA: C10H10O4
MW: 194.2
CAS NUMBER: 3843-74-1
SOURCE/HOST: Synthetic.
PURITY: ≥98%
APPEARANCE: Slightly yellowish solid.
SOLUBILITY: Soluble in DMSO, methanol or acetone.
SHIPPING: AMBIENT
LONG TERM STORAGE: -20°C
IDENTITY: Identity determined by 1H-NMR.

Product Description
Inhibitor of ornithine decarboxylase and protein tyrosine kinases. Has a strong inhibitory effect on human platelet aggregation. Shows antioxidant, antiproliferative and cytotoxic properties.
Product Specific Literature References
Effect of caffeic acid esters on carcinogen-induced mutagenicity and human colon adenocarcinoma cell growth: C.V. Rao, et al.; Chem. Biol. Interactions 84, 277 (1992) Abstract
Inhibition of platelet activation and endothelial cell injury by polyphenolic compounds isolated from Lonicera japonica Thunb: W.C. Chang & F.L. Hsu; Prostaglandins Leukot. Essent. Fatty Acids 45, 307 (1992) Abstract
Phenolic compounds from Duchesnea chrysantha and their cytotoxic activities in human cancer cell: I.R. Lee & M.Y. Yang; Arch. Pharm. Res. 17, 476 (1994) Abstract
Anti-platelet effect of the constituents isolated from the barks and fruits of Magnolia obovata: M.K. Pyo, et al.; Arch. Pharm. Res. 25, 325 (2002) Abstract
Black cohosh (Cimicifuga racemosa L.) protects against menadione-induced DNA damage through scavenging of reactive oxygen species: bioassay-directed isolation and characterization of active principles: J.E. Burdette, et al.; J. Agric. Food Chem. 50, 7022 (2002) Abstract
Phenolic acid derivatives with potential anticancer properties--a structure-activity relationship study. Part 1: methyl, propyl and octyl esters of caffeic and gallic acids: S.M. Fiuza, et al.; Bioorg. Med. Chem. 12, 3581 (2004) Abstract
Further Categories Containing This Product:
Other Natural Products for Cancer Research • Tyrosine Kinase Inhibitors • Antitumor Agents (Anti-proliferative) • Antithrombotic Agents/Related Products • Natural Products - Antioxidants
 
 
ALX-350-278 Revised 08-Apr-08
Caffeic acid n-octyl ester
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SYNONYMS n-Octylcaffeate
PRODUCT LINE Natural Products / Antibiotics
PRODUCT CATEGORY Natural Products - NF-kB Pathway Inhibitors
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ALX-350-278-M005   5 mg 25.00 USD Add To Cart
ALX-350-278-M025   25 mg 100.00 USD Add To Cart
Product Specification
FORMULA: C17H24O4
MW: 292.2
PURITY: ≥99%
SHIPPING: AMBIENT
LONG TERM STORAGE: -20°C

Product Description
More potent analog than CAPE (Prod. No. ALX-270-244). Suppressor of inducible nitric oxide synthase (iNOS; NOS II). Induces apoptosis.
Product Specific Literature References
Mechanism of toxicity of esters of caffeic and dihydrocaffeic acids: B. Etzenhouser, et al.; Bioorg. Med. Chem. 9, 199 (2001) Abstract
A novel antioxidant, octyl caffeate, suppression of LPS/IFN-gamma-induced inducible nitric oxide synthase gene expression in rat aortic smooth muscle cells: G. Hsiao, et al.; Biochem. Pharmacol. 65, 1383 (2003) Abstract
Caffeic acid derivatives: in vitro and in vivo anti-inflammatory properties: F.M. da Cunha, et al.; Free Radic. Res. 38, 1241 (2004) Abstract
Octylcaffeate induced apoptosis in human leukemia U937 cells: M. Ujibe, et al.; Biol. Pharm. Bull. 28, 2338 (2005) Abstract
General Information
Octylcaffeate significantly ameliorates circulatory failure of endotoxemia by suppression of iNOS (NOS II) expression through inactivation of mitogen-activated protein kinases.
Further Categories Containing This Product:
NOS Inhibitors (NOS Induction & Enzyme Activity) • Natural Products - Anti-inflammatory Agents • NF-kB Pathway Inhibitors • Natural Products - Nitric Oxide Pathway Modulators • Natural Products - Apoptosis Inducers & Inhibitors • Natural Products - Immunomodulators • Natural Products - Antioxidants
 
 
ALX-350-320 Revised 11-Mar-08
3,5-Di-O-caffeoylquinic acid
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SYNONYMS 3,5-CQA
Isochlorogenic acid
PRODUCT LINE Natural Products / Antibiotics
PRODUCT CATEGORY Natural Products - Antioxidants
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ALX-350-320-M001   1 mg 95.00 USD Add To Cart
ALX-350-320-M005   5 mg 380.00 USD Add To Cart
Product Specification
FORMULA: C25H24O12
MW: 516.5
CAS NUMBER: 2450-53-5
SOURCE/HOST: Isolated from Cynara scolymus.
PURITY: ≥97% (HPLC)
APPEARANCE: Grey to yellow crystalline solid.
SOLUBILITY: Soluble in DMSO or 100% ethanol.
SHIPPING: AMBIENT
LONG TERM STORAGE: -20°C
HANDLING: Protect from light.
IDENTITY: Identity determined by 1H-NMR, 13C-NMR and MS.

Product Description
Antioxidant. Shows antiproliferative activity.
Product Specific Literature References
Biochemistry on postharvest metabolism and deterioration of some tropical tuberous crops: I. Uritani; Bot. Bull. Acad. Sinica 40, 177 (1999)
In vitro antioxidative effects and tyrosinase inhibitory activities of seven hydroxycinnamoyl derivatives in green coffee beans: K. Iwai, et al.; J. Agric. Food Chem. 52, 4893 (2004) Abstract
Antioxidant and antiproliferative activities of sweet potato (Ipomoea batatas [L.] Lam "Tainong 57"): D.J. Huang, et al.; Bot. Bull. Acad. Sinica 45, 179 (2004)
Changes in caffeic acid derivatives in sweet potato (Ipomoea batatas L.) during cooking and processing: M. Takenaka, et al.; Biosci. Biotechnol. Biochem. 70, 172 (2006) Abstract; Full Text