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Glutathione S-Transferase
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Items 13 of 13
ALX-350-028 Revised 12-Sep-08
Curcumin (high purity)
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SYNONYMS 1,7-bis(4-Hydroxy-3-methoxyphenyl)-1,6-heptadiene-3,5-dione
Diferuloylmethane
PRODUCT LINE Natural Products / Antibiotics
PRODUCT CATEGORY Natural Products - Anti-inflammatory Agents
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Product Numbers: Format: Size: Unit Price: Quantity: Add To Cart
ALX-350-028-M010   10 mg 15.00 USD Add To Cart
ALX-350-028-M050   50 mg 60.00 USD Add To Cart
ALX-350-028-M250   250 mg 240.00 USD Add To Cart
Product Specification
FORMULA: C21H20O6
MW: 368.4
CAS NUMBER: 458-37-7
MERCK INDEX: 14: 2673
SOURCE/HOST: Isolated from turmeric (Curcuma longa).
PURITY: ≥98.5% (Note: This highly purified product is free of demethoxy- and bis-demethoxycurcumin and does not contain 30-40% bioactive impurities)
APPEARANCE: Orange-yellow crystalline powder.
SOLUBILITY: Soluble in acetic acid or 100% ethanol.
SHIPPING: AMBIENT
LONG TERM STORAGE: +20°C
HANDLING: Protect from light.

Product Description
Dual inhibitor of cyclooxygenase (COX) and 5-lipoxygenase. Also inhibits glutathione S-transferase, induction of nitric oxide (NO) in activated macrophages and inhibits EGF-induced tyrosine phosphorylation of EGF receptors. Antioxidant. Inhibitor of NAD(P)H:quinone oxidoreductase 1 (NQO1), disrupting the binding of NQO1 to wild type p53 inducing ubiquitin-independent degradation of p53 and inhibits p53-mediated apoptosis in normal thymocytes and myeloid leukemic cells.
Product Specific Literature References
Modification of certain inflammation-induced biochemical changes by curcumin: R. Srivastava & R.C. Srimal; Indian J. Med. Res. 81, 215 (1985) Abstract
Inhibition of 5-hydroxy-eicosatetraenoic acid (5-HETE) formation in intact human neutrophils by naturally-occurring diarylheptanoids: inhibitory activities of curcuminoids and yakuchinones: D.L. Flynn, et al.; Prostagl. Leukotr. Med. 22, 357 (1986) Abstract
Inhibitory effect of curcumin on epidermal growth factor receptor kinase activity in A431 cells: L. Korutla & R. Kumar; Biochim. Biophys. Acta 1224, 597 (1994) Abstract
Curcumin, an anti-tumour promoter and anti-inflammatory agent, inhibits induction of nitric oxide synthase in activated macrophages: I. Brouet & H. Okshima; BBRC 206, 533 (1995) Abstract
Cytotoxicity and cytoprotective activities of natural compounds. The case of curcumin: J.N. Commandeur & N.P. Vermeulen; Xenobiotica 26, 667 (1996) Abstract
Nitric oxide scavenging by curcuminoids: Sreejayan & M.N. Rao; J. Pharm. Pharmacol. 49, 105 (1997) Abstract
Inhibitory effects of curcumin on tumorigenesis in mice: M.T. Huang, et al.; J. Cell. Biochem. (Suppl.) 27, 26 (1997) Abstract
In vivo inhibition of nitric oxide synthase gene expression by curcumin, a cancer preventive natural product with anti-inflammatory properties: M.M. Chan, et al.; Biochem. Pharmacol. 55, 1955 (1998) Abstract
Effect of curcumin on the production of nitric oxide by cultured rat mammary gland: M. Onoda & H. Inano; Nitric Oxide 4, 505 (2000) Abstract
Suppression of nitric oxide oxidation to nitrite by curcumin is due to the sequestration of the reaction intermediate nitrogen dioxide, not nitric oxide: B.D. Johnston & E.G. DeMaster; Nitric Oxide 8, 231 (2003) Abstract
Biological properties of curcumin-cellular and molecular mechanisms of action: B. Joe, et al.; Crit. Rev. Food Sci. Nutr. 44, 97 (2004), (Review) Abstract
Curcumin, a major constituent of turmeric, corrects cystic fibrosis defects: M.E. Egan, et al.; Science 304, 600 (2004) Abstract
Inhibition of NAD(P)H:quinone oxidoreductase 1 activity and induction of p53 degradation by the natural phenolic compound curcumin: P. Tsvetkov, et al.; PNAS 102, 5535 (2005) Abstract
Immunomodulatory effects of curcumin: V.S. Yadav, et al.; Immunopharmacol. Immunotoxicol. 27, 485 (2005) Abstract
Curcumin, an atoxic antioxidant and natural NFkappaB, cyclooxygenase-2, lipooxygenase, and inducible nitric oxide synthase inhibitor: a shield against acute and chronic diseases: S. Bengmark; JPEN J. Parenter. Enteral. Nutr. 30, 45 (2006), (Review) Abstract
Curcumin is an inhibitor of p300 histone acetylatransferase: M.G. Marcu, et al.; Med. Chem. 2, 169 (2006) Abstract
Multiple biological activities of curcumin: a short review: R.K. Maheshwari, et al.; Life Sci. 78, 2081 (2006), (Review) Abstract
Curcumin inhibits hypoxia-induced angiogenesis via down-regulation of HIF-1: M.K. Bae, et al.; Oncol. Rep. 15, 1557 (2006) Abstract
Notch-1 down-regulation by curcumin is associated with the inhibition of cell growth and the induction of apoptosis in pancreatic cancer cells: Z. Wang, et al.; Cancer 106, 2503 (2006) Abstract
Curcumin improves wound healing by modulating collagen and decreasing reactive oxygen species: M. Panchatcharam, et al.; Mol. Cell Biochem. 290, 87 (2006) Abstract
Inhibitory effect of curcumin on nitric oxide production from lipopolysaccharide-activated primary microglia: K.K. Jung, et al.; Life Sci. 79, 2022 (2006) Abstract
The dietary compound curcumin inhibits p300 histone acetyltransferase activity and prevents heart failure in rats: T. Morimoto, et al.; J. Clin. Invest. 118, 868 (2008) Abstract; Full Text
 
 
ALX-350-220 Revised 05-May-08
Cafestol
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PRODUCT LINE Natural Products / Antibiotics
PRODUCT CATEGORY Natural Products - Chemopreventive Agents
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ALX-350-220-M050   50 mg 160.00 USD Add To Cart
Product Specification
FORMULA: C20H28O3
MW: 316.4
CAS NUMBER: 469-83-0
MERCK INDEX: 14: 1634
SOURCE/HOST: Isolated from the unsaponifiable fraction of petroleum ether extract of coffee beans.
PURITY: ≥98% (HPLC)
APPEARANCE: White to off-white solid.
SOLUBILITY: Soluble in DMSO, 100% ethanol or ethyl acetate.
SHIPPING: AMBIENT
LONG TERM STORAGE: -20°C
IDENTITY: Identity determined by 1H-NMR.

Product Description
Inducer of glutathione S-transferases. Has chemoprotective activity, reducing the genotoxicity of several carcinogens.
Product Specific Literature References
R.O. Bengis and R.J. Anderson; J. Biol. Chem. 47, 99 (1932)
K.H. Slotta and K. Neisser; Ber. 71, 1991 (1938)
Isolation and identification of kahweol palmitate and cafestol palmitate as active constituents of green coffee beans that enhance glutathione S-transferase activity in the mouse: L.K.T. Lam, et al.; Cancer Res. 42, 1193 (1982)
The coffee-specific diterpenes cafestol and kahweol protect against aflatoxin B1-induced genotoxicity through a dual mechanism: C. Cavin, et al.; Carcinogenesis 19, 1369 (1998) Abstract
Cafestol and kahweol, two coffee specific diterpenes with anticarcinogenic activity: C. Cavin, et al.; Food Chem. Toxicol. 40, 1155 (2002) Abstract
 
 
ALX-350-222 Revised 28-Mar-08
Dihydromyristicin
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PRODUCT LINE Natural Products / Antibiotics
PRODUCT CATEGORY Natural Products - Chemopreventive Agents
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ALX-350-222-M100   100 mg 70.00 USD Add To Cart
Product Specification
FORMULA: C11H14O3
MW: 194.2
CAS NUMBER: 52811-28-6
PURITY: ≥98% (TLC)
APPEARANCE: Colorless liquid.
SOLUBILITY: Soluble in 100% ethanol or ethyl acetate; insoluble in water.
SHIPPING: AMBIENT
LONG TERM STORAGE: +4°C

Product Description
Hydrogenated product of myristicin (Prod. No. ALX-350-227), a natural constituent of parsley. Inducer of glutathione S-transferases.
Product Specific Literature References
Myristicin: a potential cancer chemopreventive agent from parsley leaf oil: G.-Q. Zheng, et al.; J. Agri. Food Chem. 40, 107 (1992)
Inhibition of benzo[a]pyrene-induced tumorigenesis by myristicin, a volatile aroma constituent of parsley leaf oil: G.Q. Zheng, et al.; Carcinogenesis 13, 1921 (1992) Abstract
 
 
ALX-350-223 Revised 07-Apr-08
Kahweol
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PRODUCT LINE Natural Products / Antibiotics
PRODUCT CATEGORY Natural Products - Chemopreventive Agents
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ALX-350-223-M010   10 mg 90.00 USD Add To Cart
Product Specification
FORMULA: C20H26O3
MW: 314.2
CAS NUMBER: 6894-43-5
SOURCE/HOST: Natural product isolated from the unsaponifiable fraction of petroleum ether extract of coffee beans.
PURITY: ≥98% (HPLC)
APPEARANCE: Off-white to yellow solid.
SOLUBILITY: Soluble in ethyl acetate, acetone or DMSO; insoluble in water.
SHIPPING: AMBIENT
LONG TERM STORAGE: -20°C

Product Description
Induces glutathione S-transferase. Has anti-cancer, chemoprotective, anti-inflammatory and anti-atherosclerotic properties.
Product Specific Literature References
R.O. Bengis & R.J. Anderson; J. Biol. Chem. 47, 99 (1932)
Isolation and identification of kahweol palmitate and cafestol palmitate as active constituents of green coffee beans that enhance glutathione S-transferase activity in the mouse: L.K. Lam, et al.; Cancer Res. 42, 1193 (1982) Abstract
Effects of derivatives of kahweol and cafestol on the activity of glutathione S-transferase in mice: L.K. Lam, et al.; J. Med. Chem. 30, 1399 (1987) Abstract
Placental glutathione S-transferase (GST-P) induction as a potential mechanism for the anti-carcinogenic effect of the coffee-specific components cafestol and kahweol: B. Schilter, et al.; Carcinogenesis 17, 2377 (1996) Abstract
Chemoprotection against the formation of colon DNA adducts from the food-borne carcinogen 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP) in the rat: W.W. Huber, et al.; Mutat. Res. 376, 115 (1997) Abstract
The coffee-specific diterpenes cafestol and kahweol protect against aflatoxin B1-induced genotoxicity through a dual mechanism: C. Cavin, et al.; Carcinogenesis 19, 1369 (1998) Abstract
Cafestol and kahweol, two coffee specific diterpenes with anticarcinogenic activity: C. Cavin, et al.; Food Chem. Toxicol. 40, 1155 (2002) Abstract
The coffee diterpene kahweol inhibits tumor necrosis factor-alpha-induced expression of cell adhesion molecules in human endothelial cells: H.G. Kim, et al.; Toxicol. Appl. Pharmacol. 217, 332 (2006) Abstract
 
 
ALX-350-227 Revised 28-Apr-08
Myristicin
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PRODUCT LINE Natural Products / Antibiotics
PRODUCT CATEGORY Natural Products - Chemopreventive Agents
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ALX-350-227-M100   100 mg 110.00 USD Add To Cart
Product Specification
FORMULA: C11H12O3
MW: 192.2
CAS NUMBER: 607-91-0
MERCK INDEX: 14: 6334
SOURCE/HOST: Isolated from Petroselinium hortense Hoffmann.
PURITY: ≥98% (HPLC)
APPEARANCE: Colorless to slightly yellow liquid.
SOLUBILITY: Soluble in DMSO or methanol.
SHIPPING: AMBIENT
LONG TERM STORAGE: -20°C

Product Description
Natural product isolated from parsley oil. Inducer of glutathione S-transferases. Also inhibits chemical carcinogenesis. Induces rat and human cytochrome P450 enzymes. Has very potent hepatoprotective activity. Induces apoptosis.
Product Specific Literature References
Myristicin: a potential cancer chemopreventive agent from parsley leaf oil: G.-Q. Zheng, et al.; J. Agri. Food Chem. 40, 107 (1992)
Inhibition of benzo[a]pyrene-induced tumorigenesis by myristicin, a volatile aroma constituent of parsley leaf oil: G.-Q. Zheng, et al.; Carcinogenesis 13, 1921 (1992) Abstract
Induction of rat hepatic cytochrome P450 enzymes by myristicin: H.G. Jeong & C.H. Yun; BBRC 217, 966 (1995) Abstract
Toxicological evaluation of myristicin: H. Hallstrom & A. Thuvander; Nat. Toxins 5, 186 (1997), Review Abstract
Roles of human liver cytochrome P450 3A4 and 1A2 enzymes in the oxidation of myristicin: C.H. Yun, et al.; Toxicol. Lett. 137, 143 (2003) Abstract
Hepatoprotective effect of myristicin from nutmeg (Myristica fragrans) on lipopolysaccharide/ d-galactosamine-induced liver injury: T. Morita, et al.; J. Agric. Food Chem. 51, 1560 (2003) Abstract
Myristicin-induced neurotoxicity in human neuroblastoma SK-N-SH cells: B.K. Lee, et al.; Toxicol. Lett. 157, 49 (2005) Abstract
 
 
ALX-350-229 Revised 24-Jul-08
Sedanolide
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SYNONYMS 3-Butyl-3a,4,5,6-tetrahydro-1(3H)-isobenzofuranone
PRODUCT LINE Natural Products / Antibiotics
PRODUCT CATEGORY Natural Products - Chemopreventive Agents
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ALX-350-229-M100   100 mg 140.00 USD Add To Cart
Product Specification
FORMULA: C12H18O2
MW: 194.1
CAS NUMBER: 6415-59-4
SOURCE/HOST: Isolated from Apium graveolens L.
PURITY: ≥98% (HPLC)
APPEARANCE: White to off-white solid.
SOLUBILITY: Soluble in 100% ethanol or ethyl acetate.
SHIPPING: SHIPPED ON BLUE ICE
LONG TERM STORAGE: -20°C
MELTINGPOINT: 30-31°C

Product Description
Inducer of glutathione S-transferases and inhibitor of chemically induced carcinogenesis. Mosquitocidal, nematicidal and antifungal. Was shown to inhibit cyclooxygenase-1 and -2 (COX-1 and COX-2) as well as topoisomerase I and topoisomerase II.
Product Specific Literature References
Chemoprevention of benzo[a]pyrene-induced forestomach cancer in mice by natural phthalides from celery seed oil: G.-Q. Zheng, et al.; Nutr. Cancer 19, 77 (1993) Abstract
Mosquitocidal, nematicidal, and antifungal compounds from Apium graveolens L. seeds: R.A. Momin & M.G. Nair; J. Agric. Food Chem. 49, 142 (2001) Abstract
Sedanolide, a natural phthalide from celery seed oil: effect on hydrogen peroxide and tert-butyl hydroperoxide-induced toxicity in HepG2 and CaCo-2 human cell lines: J.A. Woods, et al.; In Vitr. Mol. Toxicol. 14, 233 (2001) Abstract
Antioxidant, cyclooxygenase and topoisomerase inhibitory compounds from Apium graveolens Linn. seeds: R.A. Momin & M.G. Nair; Phytomedicine 9, 312 (2002) Abstract
 
 
ALX-350-230 Revised 03-Nov-08
L-Sulforaphane
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SYNONYMS R-Sulforaphane
(-)-1-Isothiocyanato-(4R)-(methylsulfinyl)butane
PRODUCT LINE Natural Products / Antibiotics
PRODUCT CATEGORY Natural Products - Chemopreventive Agents
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ALX-350-230-M010   10 mg 180.00 USD Add To Cart
Product Specification
FORMULA: C6H11NOS2
MW: 177.3
CAS NUMBER: 142825-10-3; 4478-93-7
MERCK INDEX: 14: 8962
SOURCE/HOST: Chiral natural product isolated from broccoli.
PURITY: ≥98% (UPLC)
APPEARANCE: Slightly yellowish liquid.
SOLUBILITY: Soluble in methanol, 100% ethanol, DMSO or ethyl acetate.
SHIPPING: AMBIENT
LONG TERM STORAGE: -20°C

Product Description
Potent, selective inducer of phase II detoxification enzymes. Inhibits chemically induced mammary tumor formation in rats.
Product Specific Literature References
A major inducer of anticarcinogenic protective enzymes from broccoli: isolation and elucidation of structure: Y. Zhang, et al.; PNAS 89, 2399 (1992) Abstract; Full Text
Anticarcinogenic activities of sulforaphane and structurally related synthetic norbornyl isothiocyanates: Y. Zhang, et al.; PNAS 91, 3147 (1994) Abstract; Full Text
Sulforaphane inhibits extracellular, intracellular, and antibiotic-resistant strains of Helicobacter pylori and prevents benzo[a]pyrene-induced stomach tumors: J.W. Fahey, et al.; PNAS 99, 7610 (2002) Abstract; Full Text
A novel mechanism of chemoprotection by sulforaphane: inhibition of histone deacetylase: M.C. Myzak ,et al.; Cancer Res. 64, 5767 (2004) Abstract; Full Text
Reprogramming of keratin biosynthesis by sulforaphane restores skin integrity in epidermolysis bullosa simplex: M.L. Kerns, et al.; PNAS 104, 14460 (2007) Abstract
Sulforaphane targets pancreatic tumor-initiating cells by NF-{kappa}B-induced anti-apoptotic signaling: G. Kallifatidis, et al.; Gut Epub ahead of print, (2008) Abstract
 
 
ALX-350-232 Revised 06-Oct-08
DL-Sulforaphane
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SYNONYMS R,S-Sulforaphane
1-Isothiocyanato-4-methylsulfinyl-butane
PRODUCT LINE Natural Products / Antibiotics
PRODUCT CATEGORY Natural Products - Chemopreventive Agents
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ALX-350-232-M025   25 mg 140.00 USD Add To Cart
Product Specification
FORMULA: C6H11NOS2
MW: 177.3
CAS NUMBER: 142825-10-3; 4478-93-7 (unspecified stereo)
MERCK INDEX: 14: 8962
SOURCE/HOST: Synthetic.
PURITY: ≥98% (UPLC)
APPEARANCE: Slightly yellowish liquid.
SOLUBILITY: Soluble in methanol or DMSO.
SHIPPING: AMBIENT
LONG TERM STORAGE: -20°C
IDENTITY: Identity determined by 1H-NMR and MS.

Product Description
Potent, selective inducer of phase II detoxification enzymes. Inhibits chemically induced mammary tumor formation in rats. Inhibits LPS-induced HMGB1 (high mobility group box 1) secretion.
Product Specific Literature References
A major inducer of anticarcinogenic protective enzymes from broccoli: isolation and elucidation of structure: Y. Zhang, et al.; PNAS 89, 2399 (1992) Abstract; Full Text
Anticarcinogenic activities of sulforaphane and structurally related synthetic norbornyl isothiocyanates: Y. Zhang, et al.; PNAS 91, 3147 (1994) Abstract; Full Text
A novel mechanism of chemoprotection by sulforaphane: inhibition of histone deacetylase: M.C. Myzak, et al.; Cancer Res. 64, 5767 (2004) Abstract; Full Text
The phase 2 enzyme inducers ethacrynic acid, DL-sulforaphane, and oltipraz inhibit lipopolysaccharide-induced high-mobility group box 1 secretion by RAW 264.7 cells: M.E. Killeen, et al.; J. Pharmacol. Exp. Ther. 316, 1070 (2006) Abstract
Sulforaphane targets pancreatic tumor-initiating cells by NF-{kappa}B-induced anti-apoptotic signaling: G. Kallifatidis, et al.; Gut Epub ahead of print, (2008) Abstract
 
 
ALX-350-246 Revised 07-Oct-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. 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 bute