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ALX-385-024 Revised 06-Oct-08
Isorhamnetin
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SYNONYMS 3-Methylquercetin
3'-Methoxy-3,4',5,7-tetrahydroxyflavone
3,5,7-Trihydroxy-2-(4-hydroxy-3-methoxyphenyl)-4-benzopyrone
PRODUCT LINE Natural Products / Antibiotics
PRODUCT CATEGORY Flavonols
Ordering Information
Product Numbers: Format: Size: Unit Price: Quantity: Add To Cart
ALX-385-024-M005   5 mg 90.00 USD Add To Cart
ALX-385-024-M010   10 mg 150.00 USD Add To Cart
Product Specification
FORMULA: C16H12O7
MW: 316.3
CAS NUMBER: 480-19-3
PURITY: ≥98% (HPLC)
APPEARANCE: Yellow solid.
SOLUBILITY: Soluble in acetone, methanol, ethylacetate or DMSO. Only sparingly soluble in water.
SHIPPING: AMBIENT
LONG TERM STORAGE: +4°C
HAZARD: MAY BE CARCINOGENIC. HARMFUL.

Product Description
Antiviral agent. Antioxidant. Antitumor compound. Apoptosis inducer.
Product Specific Literature References
Anti-tumor promoting activity of polyphenols from Cowania mexicana and Coleogyne ramosissima: H. Ito, et al.; Cancer Lett. 143, 5 (1999) Abstract
Inhibition of xanthine oxidase by flavonoids: A. Nagao, et al.; Biosci. Biotechnol. Biochem. 63, 1787 (1999) Abstract
Effects of intrinsic fluorescence and quenching on fluorescence-based screening of natural products: L. Zou, et al.; Phytomedicine 9, 263 (2002) Abstract
Antioxidant effects of isorhamnetin 3,7-di-O-beta-D-glucopyranoside isolated from mustard leaf (Brassica juncea) in rats with streptozotocin-induced diabetes: T. Yokozawa, et al.; J. Agric. Food Chem. 50, 5490 (2002) Abstract
Effect of five flavonoid compounds isolated from leaves of Diospyros kaki on stimulus-induced superoxide generation and tyrosyl phosphorylation of proteins in human neutrophils: G. Chen, et al.; Clin. Chim. Acta 326, 169 (2002) Abstract
Isorhamnetin prevent endothelial cell injuries from oxidized LDL via activation of p38MAPK: M. Bao & Y. Lou; Eur. J. Pharmacol. 547, 22 (2006) Abstract
The flavonoid component isorhamnetin in vitro inhibits proliferation and induces apoptosis in Eca-109 cells: G. Ma, et al.; Chem. Biol. Interact. 167, 153 (2007) Abstract
 
 
ALX-385-005 Revised 21-May-08
Kaempferol
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SYNONYMS 3,4',5,7-Tetrahydroxyflavone
PRODUCT LINE Natural Products / Antibiotics
PRODUCT CATEGORY Flavonols
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ALX-385-005-M010   10 mg 40.00 USD Add To Cart
ALX-385-005-M050   50 mg 120.00 USD Add To Cart
Product Specification
FORMULA: C15H10O6
MW: 286.2
CAS NUMBER: 520-18-3
MERCK INDEX: 14: 5274
RTECS: LK9275200
PURITY: ≥90%
APPEARANCE: Yellow powder.
SOLUBILITY: Soluble in ether or 100% ethanol (hot); slightly soluble in water.
SHIPPING: AMBIENT
LONG TERM STORAGE: +4°C
HANDLING: Protect from light.
HAZARD: IRRITANT. MAY BE MUTAGENIC.

Product Description
Antioxidant flavonoid. Apoptosis inducer. Reversible inhibitor of fatty acid synthase (FAS).
Product Specific Literature References
Structure-antioxidant activity relationships of flavonoids and phenolic acids: C.A. Rice-Evans, et al.; Free Radical Biol. & Med. 20, 933 (1996), (Review) Abstract
Presence of fatty acid synthase inhibitors in the rhizome of Alpinia officinarum hance: B.H. Li & W.X. Tian; J. Enzyme Inhib. Med. Chem. 18, 349 (2003) Abstract
Pharmacological inhibitors of Fatty Acid Synthase (FASN)--catalyzed endogenous fatty acid biogenesis: a new family of anti-cancer agents?: R. Lupu & J. A. Menendez; Curr. Pharm. Biotechnol. 7, 483 (2006), (Review) Abstract
 
 
ALX-385-016 Revised 02-Jun-08
Morin
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SYNONYMS 2’,3,4’,5,7-Pentahydroxyflavone
PRODUCT LINE Natural Products / Antibiotics
PRODUCT CATEGORY Flavonols
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ALX-385-016-G001   1 g 16.00 USD Add To Cart
Product Specification
FORMULA: C15H10O7
MW: 302.2
CAS NUMBER: 480-16-0
MERCK INDEX: 14: 6269
RTECS: LK8749000
PURITY: ≥85%
APPEARANCE: White to brown powder.
SOLUBILITY: Soluble in methanol or 100% ethanol; slightly soluble in ether or acetic acid.
SHIPPING: AMBIENT
LONG TERM STORAGE: +20°C
HAZARD: IRRITANT.

Product Description
Antioxidant flavonoid. Shows anti-proliferative and antitumor properties. Induces apoptosis. Induces cell cycle arrest at the G2/M phase. Anti-inflammatory compound. Suppresses NF-κB activation. Induces lipid peroxidation and DNA strand breaks.
Product Specific Literature References
Structure-antioxidant activity relationships of flavonoids and phenolic acids: C.A. Rice-Evans, et al.; Free Radical Biol. & Med. 20, 933 (1996), (Review) Abstract
Lipid peroxidation and DNA damage induced by morin and naringenin in isolated rat liver nuclei: S. C. Sahu & G. C. Gray; Food Chem. Toxicol. 35, 443 (1997) Abstract
Morin inhibits the growth of human leukemia HL-60 cells via cell cycle arrest and induction of apoptosis through mitochondria dependent pathway: H.M. Kuo, et al.; Anticancer Res. 27, 395 (2007) Abstract
Morin (3,5,7,2’,4’-Pentahydroxyflavone) abolishes nuclear factor-kappaB activation induced by various carcinogens and inflammatory stimuli, leading to suppression of nuclear factor-kappaB-regulated gene expression and up-regulation of apoptosi: S.K. Manna, et al.; Clin. Cancer Res. 13, 2290 (2007) Abstract
 
 
ALX-385-012 Revised 19-Nov-07
Myricetin
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SYNONYMS 3,3',4',5,5',7-Hexahydroxyflavone
PRODUCT LINE Natural Products / Antibiotics
PRODUCT CATEGORY Flavonols
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ALX-385-012-M010   10 mg 35.00 USD Add To Cart
ALX-385-012-M050   50 mg 140.00 USD Add To Cart
Product Specification
FORMULA: C15H10O8
MW: 318.2
CAS NUMBER: 529-44-2
MERCK INDEX: 14: 6332
RTECS: LK8646000
PURITY: ≥97%
APPEARANCE: Light yellow-green crystals.
SOLUBILITY: Soluble in alcohol; slightly soluble in water (warm); insoluble in acetic acid.
SHIPPING: AMBIENT
LONG TERM STORAGE: +20°C
HANDLING: Protect from light.

Product Description
Antioxidant flavonoid. Has antitumor and chemopreventive properties. Anti-inflammatory. Inhibits NF-κB activation. 
Product Specific Literature References
Structure-antioxidant activity relationships of flavonoids and phenolic acids: C.A. Rice-Evans, et al.; Free Radical Biol. & Med. 20, 933 (1996), (Review) Abstract
Biological effects of myricetin: K. C. Ong & H. E. Khoo; Gen. Pharmacol. 29, 121 (1997), (Review) Abstract
In vitro cytotoxicity of glyco-S-nitrosothiols. a novel class of nitric oxide donors: H. Babich & H.L. Zuckerbraun; Toxicol. In Vitro 15, 181 (2001) Abstract
Suppression of TNFalpha-mediated NFkappaB activity by myricetin and other flavonoids through downregulating the activity of IKK in ECV304 cells: S. H. Tsai, et al.; J. Cell Biochem. 74, 606 (1999) Abstract
Myricetin inhibits matrix metalloproteinase 2 protein expression and enzyme activity in colorectal carcinoma cells: C.H. Ko, et al.; Mol. Cancer Ther. 4, 281 (2005) Abstract
Mitochondrial-dependent, reactive oxygen species-independent apoptosis by myricetin: roles of protein kinase C, cytochrome c, and caspase cascade: C.H. Ko, et al.; Biochem. Pharmacol. 69, 913 (2005) Abstract
Inhibition of Mammalian thioredoxin reductase by some flavonoids: implications for myricetin and quercetin anticancer activity: J. Lu, et al.; Cancer Res. 66, 4410 (2006) Abstract
Myricetin is a novel natural inhibitor of neoplastic cell transformation and MEK1: K.W. Lee, et al.; Carcinogenesis 28, 1918 (2007) Abstract
 
 
ALX-385-001 Revised 08-Apr-08
Quercetin . dihydrate
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SYNONYMS 3,3',4',5,7-Pentahydroxyflavone . 2H2O
PRODUCT LINE Natural Products / Antibiotics
PRODUCT CATEGORY Flavonols
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ALX-385-001-G005   5 g 15.00 USD Add To Cart
ALX-385-001-G025   25 g 45.00 USD Add To Cart
Product Specification
FORMULA: C15H10O7 . 2H2O
MW: 302.2 . 36.0
CAS NUMBER: 6151-25-3
MERCK INDEX: 14: 8034
RTECS: LK8950000
SOURCE/HOST: Isolated from Sophora japonica L.
PURITY: ≥95% (HPLC)
APPEARANCE: Yellow powder with a green or brown cast.
SOLUBILITY: Soluble in 100% ethanol or 1M sodium hydroxide; almost insoluble in water.
SHIPPING: AMBIENT
LONG TERM STORAGE: +20°C
HAZARD: MAY BE MUTAGENIC. TOXIC.

Product Description
Antioxidant flavonoid. Inhibitor of mitochondrial ATPase, cAMP- and cGMP-phosphodiesterases. Inhibitor of protein tyrosine kinases and protein kinase C (PKC). Induces apoptosis. Blocks cells at the G0/G1 interface. Activator of human deacetylase SIRT1. Reversible inhibitor of fatty acid synthase (FAS). Inhibits the production of the inflammatory mediators nitric oxide (NO), TNF-α and IL-12 in activated macrophages.
Product Specific Literature References
Effects of quercetin and F1 inhibitor on mitochondrial ATPase and energy-linked reactions in submitochondrial particles: D.R. Lang & E. Racker; Biochim. Biophys. Acta 333, 180 (1974)
Flavonoid compounds are potent inhibitors of cyclic AMP phosphodiesterase: A. Beretz, et al.; Experientia 34, 1054 (1978) Abstract
Flavonoids are selective cyclic GMP phosphodiesterase inhibitors: M. Ruckstuhl, et al.; Biochem. Pharmacol. 28, 535 (1979) Abstract
The effect of quercetin on the phosphorylation activity of the Rous sarcoma virus transforming gene product in vitro and in vivo: Y. Graziani, et al.; Eur. J. Biochem. 135, 583 (1983) Abstract
Inhibition of the calcium- and phospholipid-dependent protein kinase activity from mouse brain cytosol by quercetin: M. Gschwendt, et al.; BBRC 117, 444 (1983) Abstract
Tyrosine protein kinase activity in the DMBA-induced rat mammary tumor: inhibition by quercetin: J. Levy, et al.; BBRC 123, 1227 (1984) Abstract
The phospholipid- and calcium-dependent protein kinase as a target in tumor chemotherapy: H. Grunicke, et al.; Adv. Enzyme Regul. 28, 201 (1989) Abstract
Induction of apoptosis by quercetin: involvement of heat shock protein: Y.Q. Wei, et al.; Cancer Res. 54, 4952 (1994) Abstract
Multiple effects of tyrosine kinase inhibitors on vascular smooth muscle contraction: C.M. Filipeanu, et al.; Eur. J. Pharmacol. 281, 29 (1995) Abstract
Structure-antioxidant activity relationships of flavonoids and phenolic acids: C.A. Rice-Evans, et al.; Free Radical Biol. & Med. 20, 933 (1996), (Review) Abstract
Molecular mechanisms in the antiproliferative action of quercetin: B. Csokay, et al.; Life Sci. 60, 2157 (1997) Abstract
Modulation of the heat-induced activation of mitogen-activated protein (MAP) kinase by quercetin: Y. Nagasaka & K. Nakamura; Biochem. Pharmacol. 56, 1151 (1998) Abstract
Quercetin-induced apoptosis in colorectal tumor cells: possible role of EGF receptor signaling: M. Richter, et al.; Nutr. Cancer 34, 88 (1999) Abstract
Quercetin and anti-CD95(Fas/Apo1) enhance apoptosis in HPB-ALL cell line: M. Russo, et al.; FEBS Lett. 462, 322 (1999) Abstract
The effect of quercetin on induction of apoptosis: J. Rzymowska, et al.; Folia Histochem. Cytobiol. 37, 125 (1999) Abstract
Quercetin, coenzyme Q10, and L-canavanine as protective agents against lipid peroxidation and nitric oxide generation in endotoxin-induced shock in rat brain: H.M. Abd El-Gawad & A.E. Khalifa; Pharmacol. Res. 43, 257 (2001) Abstract
Small molecule activators of sirtuins extend Saccharomyces cerevisiae lifespan: K.T. Howitz, et al.; Nature 425, 191 (2003)
Presence of fatty acid synthase inhibitors in the rhizome of Alpinia officinarum hance: B.H. Li and W.X. Tian; J. Enzyme Inhib. Med. Chem. 18, 349 (2003) Abstract
Inhibitory effects of the flavonoids isolated from Waltheria indica on the production of NO, TNF-alpha and IL-12 in activated macrophages: Y.K. Rao, et al.; Biol. Pharm. Bull. 28, 912 (2005) Abstract
Pharmacological inhibitors of Fatty Acid Synthase (FASN)--catalyzed endogenous fatty acid biogenesis: a new family of anti-cancer agents?: R. Lupu & J. A. Menendez; Curr. Pharm. Biotechnol. 7, 483 (2006), (Review) Abstract
Onions: a source of unique dietary flavonoids: R. Slimestad, et al.; J. Agric. Food Chem. 55, 10067 (2007) Abstract
 
 
ALX-460-028 Revised 24-Oct-07
Rutin . trihydrate
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SYNONYMS Quercetin-3-rutinoside . 3H2O
Vitamin P
3,3',4',5,7-Pentahydroxyflavone-3-rutinoside . 3H2O
PRODUCT LINE Natural Products / Antibiotics
PRODUCT CATEGORY Flavonols
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ALX-460-028-G005   5 g 15.00 USD Add To Cart
Product Specification
FORMULA: C27H30O16 . 3H2O
MW: 610.5 . 54.0
CAS NUMBER: 153-18-4
MERCK INDEX: 14: 8304
PURITY: ≥99% (Assay)
APPEARANCE: Off-white to yellow powder.
SOLUBILITY: Soluble in pyridine or alkaline solutions; slightly soluble in 100% ethanol; very slightly soluble in water.
SHIPPING: AMBIENT
LONG TERM STORAGE: +20°C
HANDLING: Protect from light.
HAZARD: IRRITANT.

Product Description
Antioxidant flavonoid. Nitric oxide (NO) scavenger.
Product Specific Literature References
Flavonoids as scavengers of nitric oxide radical: S.A.B.E. Acker, et al.; BBRC 214, 755 (1995) Abstract
Structure-antioxidant activity relationships of flavonoids and phenolic acids: C.A. Rice-Evans, et al.; Free Radical Biol. & Med. 20, 933 (1996), (Review) Abstract
Antioxidant and chelating properties of flavonoids
:
L.G. Korkina and I.B. Afanas´ev; Adv. Pharmacol. 38, 151 (1997) Abstract
Antimicrobial activity of flavonoids: T. P. Cushnie & A. J. Lamb; Int. J. Antimicrob. Agents 26, 343 (2005) Abstract
 
 
ALX-350-305 Revised 08-Apr-08
Tiliroside
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PRODUCT LINE Natural Products / Antibiotics
PRODUCT CATEGORY Natural Products - Antioxidants
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ALX-350-305-M001   1 mg 140.00 USD Add To Cart
Product Specification
FORMULA: C30H26O13
MW: 594.5
CAS NUMBER: 20316-62-5
SOURCE/HOST: Isolated from Tilia sp.
PURITY: ≥97% (HPLC)
APPEARANCE: White to off-white solid.
SOLUBILITY: Soluble in DMSO or 100% ethanol.
SHIPPING: AMBIENT
LONG TERM STORAGE: -20°C
HANDLING: Protect from light.
IDENTITY: Determined by 1H-NMR, 13C-NMR and MS.

Product Description
Flavonoid which shows anti-complement, anti-inflammatory and free radical scavenger activity. Inhibits the production of the inflammatory mediators nitric oxide (NO), TNF-α and IL-12 in activated macrophages. Shows potent activity against d-GalN-induced cytotoxicity in hepatocytes. Cytotoxic against specific leukaemic cell lines. Inhibits LDL oxidation. Antibacterial and antifungal.
Product Specific Literature References
Anti-complement activity of tiliroside from the flower buds of Magnolia fargesii: K.Y. Jung, et al.; Biol. Pharm. Bull. 21, 1077 (1998) Abstract
Cytotoxic and antiproliferative effects of heptaacetyltiliroside on human leukemic cell lines: K. Dimas, et al.; Leuk. Res. 23, 1021 (1999) Abstract
Hepatoprotective principles from the flowers of Tilia argentea (linden): structure requirements of tiliroside and mechanisms of action: H. Matsuda, et al.; Bioorg. Med. Chem. 10, 707 (2002) Abstract
Assessment of the anti-inflammatory activity and free radical scavenger activity of tiliroside: A. Sala, et al.; Eur. J. Pharmacol. 461, 53 (2003) Abstract
Flavonoids from the leaves of Litsea japonica and their anti-complement activity: S.Y. Lee, et al.; Phytother. Res. 19, 273 (2005) Abstract
Inhibitory effects of the flavonoids isolated from Waltheria indica on the production of NO, TNF-alpha and IL-12 in activated macrophages: Y.K. Rao, et al.; Biol. Pharm. Bull. 28, 912 (2005) Abstract; Full Text
Antiviral and antimicrobial assessment of some selected flavonoids: B. Ozcelik, et al.; Z. Naturforsch. [C] 61, 632 (2006) Abstract
Tiliroside and gnaphaliin inhibit human low density lipoprotein oxidation: G.R. Schinella, et al.; Fitoterapia 78, 1 (2007) Abstract
 
 
ALX-385-030 Revised 12-Sep-08
Trihydroxyethylrutin
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SYNONYMS Troxerutin
PRODUCT LINE Natural Products / Antibiotics
PRODUCT CATEGORY Flavonols
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ALX-385-030-G005   5 g 30.00 USD Add To Cart
ALX-385-030-G025   25 g 90.00 USD Add To Cart
Product Specification
FORMULA: C33H42O19
MW: 742.7
CAS NUMBER: 7085-55-4
MERCK INDEX: 14: 9789
RTECS: LK8331500
SOURCE/HOST: Semisynthetic.
PURITY: ≥95% (Assay)
APPEARANCE: Light yellow to greenish powder.
SOLUBILITY: Soluble in water, glycerol or propylene glycol.
SHIPPING: AMBIENT
LONG TERM STORAGE: -20°C

Product Description
More orally active than rutin (Prod. No. ALX-460-028). Vaso- and cardioprotective agent used clinically to treat venous disorders. Inhibits platelet aggregation. Protects biomembranes and DNA against the deleterious effects of γ-radiation. Free radical scavenger. Antioxidant.
Product Specific Literature References
Antiaggregatory effects of flavonoids in vivo and their influence on lipoxygenase and cyclooxygenase in vitro: J. Swies, et al.; Pol. J. Pharmacol. Pharm. 36, 455 (1984) Abstract
Effect of troxerutin and methionine on spin trapping of free oxy-radicals: I.E. Blasig, et al.; Biomed. Biochim. Acta 47, S252 (1988) Abstract
Free radical scavenging and skin penetration of troxerutin and vitamin derivatives: M. Kessler, et al.; J. Dermatolog. Treat. 13, 133 (2002) Abstract
Radioprotection of normal tissues in tumor-bearing mice by troxerutin: D.K. Maurya, et al.; J. Radiat. Res. 45, 221 (2004) Abstract; Full Text
Protection of cellular DNA from gamma-radiation-induced damages and enhancement in DNA repair by troxerutin: D.K. Maurya, et al.; Mol. Cell. Biochem. 280, 57 (2005) Abstract