g 12

AG 1295, a selective inhibitor of platelet-derived growth factor receptor (PDGFR) tyrosine-kinase, effectively halts PDGFR autophosphorylation without impacting the autophosphorylation of the EGF receptor[1][2][3][4].

AG 1254 is a biochemical.

AG 127 is a biochemical.

Hgg 12 is used to treat organophosphorus poisoning.

RG 12915 is a potent, selective 5-HT3 receptor antagonist developed for the treatment of emesis and nausea associated with cancer chemotherapy.

Tyrphostin AG 1288 is an effective inhibitor of Tyrosine Kinase. It suppresses the expression of ICAM1 and TNFα-mediated cytotoxicity in vitro.

G12 (Ras 5-17) is a wild-type Ras peptide comprising amino acids 5-17, specifically KLVVVGAGGVGKS, and serves as a control in studies investigating mutant Ras peptides such as V12.

2MeSAMP is a P2Y(12) antagonist that works by inhibiting platelet activation through a P2Y(12)/G(i)-dependent mechanism.

SAR502250 is a potent, selective, ATP-competitive, orally active, and brain-penetrant GSK3 inhibitor with a human GSK-3β IC50 value of 12 nM, exhibiting antidepressant-like activity and being researched for potential application in Alzheimer's disease (AD) treatment.

2-deoxy-D-Glucose-13C6is intended for use as an internal standard for the quantification of 2-deoxy-D-glucose by GC- or LC-MS. 2-deoxy-D-Glucose is a glucose antimetabolite and an inhibitor of glycolysis.1,2It inhibits hexokinase, the enzyme that converts glucose to glucose-6-phosphate, as well as phosphoglucose isomerase, the enzyme that converts glucose-6-phosphate to fructose-6-phosphate.32-deoxy-D-Glucose (16 mM) induces apoptosis in SK-BR-3 cells, as well as inhibits the growth of 143B osteosarcoma cells cultured under hypoxic conditions when used at a concentration of 2 mg ml.4,5In vivo, 2-deoxy-D-glucose (500 mg kg) reduces tumor growth in 143B osteosarcoma and MV522 non-small cell lung cancer mouse xenograft models when used alone or in combination with doxorubicin or paclitaxel .6 1.Kang, H.T., and Hwang, E.S.2-Deoxyglucose: An anticancer and antiviral therapeutic, but not any more a low glucose mimeticLife Sci.78(12)1392-1399(2006) 2.Aft, R.L., Zhang, F.W., and Gius, D.Evaluation of 2-deoxy-D-glucose as a chemotherapeutic agent: Mechanism of cell deathBr. J. Cancer87(7)805-812(2002) 3.Ralser, M., Wamelink, M.M., Struys, E.A., et al.A catabolic block does not sufficiently explain how 2-deoxy-D-glucose inhibits cell growthProc. Natl. Acad. Sci. USA105(46)17807-17811(2008) 4.Liu, H., Savaraj, N., Priebe, W., et al.Hypoxia increases tumor cell sensitivity to glycolytic inhibitors: A strategy for solid tumor therapy (Model C)Biochem. Pharmacol.64(12)1745-1751(2002) 5.Zhang, X.D., Deslandes, E., Villedieu, M., et al.Effect of 2-deoxy-D-glucose on various malignant cell lines in vitroAnticancer Res.26(5A)3561-3566(2006) 6.Maschek, G., Savaraj, N., Priebe, W., et al.2-deoxy-D-glucose increases the efficacy of adriamycin and paclitaxel in human osteosarcoma and non-small cell lung cancers in vivoCancer Res.64(1)31-34(2004)

rac-1,2-bis-Palmitoyl-3-chloropropanediol is a 3-monochloropropane-1,2-diol (3-MCPD) ester.1It has been found as a contaminant in edible olive oils, with the lowest and highest concentrations in extra virgin and olive pomace oils, respectively.rac-1,2-bis-Palmitoyl-3-chloropropanediol has also been found in cottonseed and palm oils, as well as in shortening.2It induces renal tubular necrosis and a decrease in spermatids, but no gross pathological changes, in mice.3 1.Hung, W.-C., Peng, G.-J., Tsai, W.-J., et al.Identification of 3-MCPD esters to verify the adulteration of extra virgin olive oilFood Addit. Contam. Part B Surveill.10(3)233-239(2017) 2.MacMahon, S., Begley, T.H., and Diachenko, G.W.Occurrence of 3-MCPD and glycidyl esters in edible oils in the United StatesFood Addit. Contam. Part A. Chem. Anal. Control Expo. Risk Assess.30(12)2081-2092(2013) 3.Liu, M., Gao, B.-Y., Qin, F., et al.Acute oral toxicity of 3-MCPD mono- and di-palmitic esters in Swiss mice and their cytotoxicity in NRK-52E rat kidney cellsFood Chem. Toxicol.50(10)3785-3791(2012)

O-Demethyl apremilast is an active metabolite of the phosphodiesterase 4 (PDE4) inhibitor apremilast .1It inhibits the activity of PDE4 isolated from U937 cells and LPS-induced TNF-α production in isolated human peripheral blood mononuclear cells (PBMCs; IC50s = 8.3 and 5.6 μM, respectively). O-Demethyl apremilast is also an oxidative degradation product of apremilast.2,3 1.Hoffmann, M., Kumar, G., Schafer, P., et al.Disposition, metabolism and mass balance of [14C]apremilast following oral administrationXenobiotica41(12)1063-1075(2011) 2.Lu, Y., Shen, X., Hang, T., et al.Identification and characterization of process-related substances and degradation products in apremilast: Process optimization and degradation pathway elucidationJ. Pharm. Biomed. Anal.14170-78(2017) 3.Bhole, R.P., Naksakhare, S.R., and Bonde, C.G.A stability indicating HPTLC method for apremilast and identification of degradation products using MS/MSJ. Pharm. Sci. & Res.11(5)1861-1869(2019)

3-Hydroxyterphenyllin is a p-terphenyl fungal metabolite originally isolated from A. candidus that has diverse biological activities, including antioxidant, antiproliferative, antibacterial, and antiviral properties.1,2,3,4 It has a 96% scavenging effect on 2,2-diphenyl-1-picrylhydrazyl radicals when used at a concentration of 100 μg/ml.2 3-Hydroxyterphenyllin inhibits the growth of HeLa cervical, A549 lung, and HepG2 liver cancer cells (IC50s = 23, 36, and 32 μM, respectively), as well as methicillin-resistant S. aureus (MRSA) and V. vulnificus bacteria (MIC = 31 μg/ml for both).3 It also inhibits HIV-1 integrase in both coupled and strand transfer assays (IC50s = 2.8 and 12.1 μM, respectively).4References1. Kurobane, I., Vining, L.C., McInnes, A.G., et al. 3-Hydroxyterphenyllin, a new metabolite of Aspergillus candidus. Structure elucidation by 1H and 13C nuclear magnetic resonance spectroscopy. J. Antibiot. (Tokyo) 32(6), 559-564 (1979).2. Yen, G.-C., Chang, Y.-C., Sheu, F., et al. Isolation and characterization of antioxidant compounds from Aspergillus candidus broth filtrate. J. Agric. Food Chem. 49(3), 1426-1431 (2001).3. Wang, W., Liao, Y., Tang, C., et al. Cytotoxic and antibacterial compounds from the coral-derived fungus Aspergillus tritici SP2-8-1. Mar. Drugs 15(11), E348 (2017).4. Singh, S.B., Jayasuriya, H., Dewey, R., et al. Isolation, structure, and HIV-1-integrase inhibitory activity of structurally diverse fungal metabolites. J. Ind. Microbiol. Biotechnol. 30(12), 721-731 (2003). 3-Hydroxyterphenyllin is a p-terphenyl fungal metabolite originally isolated from A. candidus that has diverse biological activities, including antioxidant, antiproliferative, antibacterial, and antiviral properties.1,2,3,4 It has a 96% scavenging effect on 2,2-diphenyl-1-picrylhydrazyl radicals when used at a concentration of 100 μg/ml.2 3-Hydroxyterphenyllin inhibits the growth of HeLa cervical, A549 lung, and HepG2 liver cancer cells (IC50s = 23, 36, and 32 μM, respectively), as well as methicillin-resistant S. aureus (MRSA) and V. vulnificus bacteria (MIC = 31 μg/ml for both).3 It also inhibits HIV-1 integrase in both coupled and strand transfer assays (IC50s = 2.8 and 12.1 μM, respectively).4 References1. Kurobane, I., Vining, L.C., McInnes, A.G., et al. 3-Hydroxyterphenyllin, a new metabolite of Aspergillus candidus. Structure elucidation by 1H and 13C nuclear magnetic resonance spectroscopy. J. Antibiot. (Tokyo) 32(6), 559-564 (1979).2. Yen, G.-C., Chang, Y.-C., Sheu, F., et al. Isolation and characterization of antioxidant compounds from Aspergillus candidus broth filtrate. J. Agric. Food Chem. 49(3), 1426-1431 (2001).3. Wang, W., Liao, Y., Tang, C., et al. Cytotoxic and antibacterial compounds from the coral-derived fungus Aspergillus tritici SP2-8-1. Mar. Drugs 15(11), E348 (2017).4. Singh, S.B., Jayasuriya, H., Dewey, R., et al. Isolation, structure, and HIV-1-integrase inhibitory activity of structurally diverse fungal metabolites. J. Ind. Microbiol. Biotechnol. 30(12), 721-731 (2003).

17R(18S)-EpETE is an oxylipin and a cytochrome P450 metabolite of eicosapentaenoic acid .1,217R(18S)-EpETE is an activator of large-conductance calcium-activated potassium (BKCa) channels, increasing the potassium current amplitude by 15-fold in isolated rat cerebral artery vascular smooth muscle cells (VSMCs) at +60 mV when used at a concentration of 50 nM.2It has negative chronotropic effects in isolated neonatal rat cardiomyocytes (NRCMs; EC50= ~1-2 nM) and prevents calcium-induced increases in the spontaneous beating of NRCMs.3,4 1.Schwarz, D., Kisselev, P., Ericksen, S.S., et al.Arachidonic and eicosapentaenoic acid metabolism by human CYP1A1: Highly steroselective formation of 17(R), 18(S)-epoxyeicosatetraenoic acidBiochem. Pharmacol.67(8)1445-1457(2004) 2.Lauterbach, B., Barbosa-Sicard, E., Wang, M.H., et al.Cytochrome P450-dependent eicosapentaenoic acid metabolites are novel BK channel activatorsHypertension39(2 Pt. 2)609-613(2002) 3.Falck, J.R., Wallukat, G., Puli, N., et al.17(R),18(S)-Epoxyeicosatetraenoic acid, a potent eicosapentaenoic acid (EPA) derived regulator of cardiomyocyte contraction: Structure-activity relationships and stable analoguesJ. Med. Chem.54(12)4109-4118(2011) 4.Arnold, C., Markovic, M., Blossey, K., et al.Arachidonic acid-metabolizing cytochrome P450 enzymes are targets of omega-3 fatty acidsJ. Biol. Chem.285(43)32720-32733(2010)

12(S)-HETrE is an endogenous metabolite produced by oxidation of ω-6 PUFA dihomo-γ-linolenic acid (DGLA) by 12-lipoxygenase (12-LOX) in platelets, which acts on Gαs-coupled G-protein-coupled receptors, has antithrombotic properties, and has potential therapeutic use in cardiovascular disease. 12(S)-HETrE is reported to inhibit agonist-mediated platelet activation (IC50 = 40 μM), α granule secretion, integrin αIIbβ3 activation, Rap1 activation, and thrombin-induced clot retraction in vitro.

9(E),11(E)-12-nitro Conjugated linoleic acid (9(E),11(E)-12-nitro CLA) is a nitrated fatty acid. It is formed from 9(Z),11(E)-CLA upon exposure to acidified nitrite, peroxynitrite, gaseous nitrogen dioxide, or a combination of myeloperoxidase, hydrogen peroxide, and nitrite.1It is also formed in LPS-stimulated RAW 264.7 macrophages, an effect that can be reduced by the nitric oxide synthase (NOS) inhibitor L-NAME .29(E),11(E)-12-nitro CLA has been found in human plasma. 1.Woodcock, S.R., Salvatore, S.R., Bonacci, G., et al.Biomimetic nitration of conjugated linoleic acid: Formation and characterization of naturally occurring conjugated nitrodienesJ. Org. Chem.79(1)25-33(2014) 2.Bonacci, G., Baker, P.R.S., Salvatore, S.R., et al.Conjugated linoleic acid is a preferential substrate for fatty acid nitrationJ. Biol. Chem.287(53)44071-44082(2012)

9(S),12(S),13(S)-TriHOME is a linoleic acid-derived oxylipin that has diverse biological activities.1,2,3,4It has been found in various plants and is produced in human eosinophils in a 15-lipoxygenase-dependent, soluble epoxide hydrolase-independent manner.1,59(S),12(S)13(S)-TriHOME inhibits antigen-induced β-hexosaminidase release from RBL-2H3 mast cells (IC50= 28.7 μg ml).2It inhibits LPS-induced nitric oxide (NO) production in BV-2 microglia (IC50= 40.95 μM).3In vivo, 9(S),12(S),13(S)-TriHOME (1 g animal) enhances the antiviral IgA and IgG antibody responses induced by a nasal influenza hemagglutinin (HA) vaccine by 5.2- and 2-fold, respectively, in mice.4 1.Hamberg, M., and Hamberg, G.Peroxygenase-catalyzed fatty acid epoxidation in cereal seeds: Sequential oxidation of linoleic acid into 9(S),12(S),13(S)-trihydroxy-10(E)-octadecenoic acidPlant Physiol.110(3)807-815(1996) 2.Hong, S.S., and Oh, J.S.Inhibitors of antigen-induced degranulation of RBL-2H3 cells isolated from wheat branJ. Korean Soc. Appl. Biol. Chem.5569-74(2012) 3.Kim, C.S., Kwon, O.W., Kim, S.Y., et al.Five new oxylipins from Chaenomeles sinensisLipids49(11)1151-1159(2014) 4.Shirahata, T., Sunazuka, T., Yoshida, K., et al.Total synthesis, elucidation of absolute stereochemistry, and adjuvant activity of trihydroxy fatty acidsTetrahedron62(40)9483-9496(2006) 5.Fuchs, D., Tang, X., Johnsson, A.-K., et al.Eosinophils synthesize trihydroxyoctadecenoic acids (TriHOMEs) via a 15-lipoxygenase dependent processBiochim. Biophys. Acta Mol. Cell Biol. Lipids1865(4)158611(2020)

Zonisamide-13C2,15N is intended for use as an internal standard for the quantification of zonisamide by GC- or LC-MS. Zonisamide is an antiepileptic agent.1 It selectively inhibits the repeated firing of sodium channels (IC50 = 2 μg/ml) in mouse embryo spinal cord neurons and inhibits spontaneous channel firing when used at concentrations greater than 10 μg/ml.2 In rat cerebral cortex neurons, zonisamide (1-1,000 μM) inhibits T-type calcium channels with a maximum reduction of 60% of the calcium current.3 Zonisamide inhibits H. pylori recombinant carbonic anhydrase (CA) and the human CA isoforms I, II, and V with Ki values of 218, 56, 35, and 21 nM, respectively.4,5 In mice, it has anticonvulsant activity against maximal electroshock seizure (MES) and pentylenetetrazole-induced maximal, but not minimal, seizures (ED50s = 19.6, 9.3, and >500 mg/kg, respectively). Zonisamide (40 mg/kg, p.o.) prevents MPTP-induced decreases in the levels of dopamine , but not homovanillic acid or dihydroxyphenyl acetic acid , and increases MPTP-induced decreases in the dopamine turnover rate in mouse striatum in a model of Parkinson's disease.6 Formulations containing zonisamide have been used in the treatment of partial seizures in adults with epilepsy. |1. Masuda, Y., Ishizaki, M., and Shimizu, M. Zonisamide: Pharmacology and clinical efficacy in epilepsy. CNS Drug Rev. 4(4), 341-360 (1998).|2. Rock, D.M., Macdonald, R.L., and Taylor, C.P. Blockade of sustained repetitive action potentials in cultured spinal cord neurons by zonisamide (AD 810, CI 912), a novel anticonvulsant. Epilepsy Res. 3(2), 138-143 (1989).|3. Suzuki, S., Kawakami, K., Nishimura, S., et al. Zonisamide blocks T-type calcium channel in cultured neurons of rat cerebral cortex. Epilepsy Res. 12(1), 21-27 (1992).|4. Nishimori, I., Vullo, D., Minakuchi, T., et al. Carbonic anhydrase inhibitors: Cloning and sulfonamide inhibition studies of a carboxyterminal truncated α-carbonic anhydrase from Helicobacter pylori. Bioorg. Med. Chem. Lett. 16(8), 2182-2188 (2006).|5. De Simone, G., Di Fiore, A., Menchise, V., et al. Carbonic anhydrase inhibitors. Zonisamide is an effective inhibitor of the cytosolic isozyme II and mitochondrial isozyme V: Solution and X-ray crystallographic studies. Bioorg. Med. Chem. Lett. 15(9), 2315-2320 (2005).|6. Yabe, H., Choudhury, M.E., Kubo, M., et al. Zonisamide increases dopamine turnover in the striatum of mice and common marmosets treated with MPTP. J. Pharmacol. Sci. 110(1), 64-68 (2009).

Aquastatin A is a fungal metabolite originally isolated fromF. aquaeductuumthat has diverse biological activities.1It is active againstS. aureus(MIC = 32 μg/ml) and inhibits enoyl-acyl carrier protein reductase (Fabl; IC50= 3.2 μM) andS. aureusfatty acid synthesis (IC50= 3.5 μM).2Aquastatin A also inhibits the Na+/K+-ATPase and H+/K+-ATPase (IC50s = 7.1 and 6.2 μM, respectively), as well as protein tyrosine phosphatase 1B (PTP1B; IC50= 0.19 μM).1,3 1.Hamano, K., Kinoshita-Okami, M., Minagawa, K., et al.Aquastatin A, an inhibitor of mammalian adenosine triphosphatases from Fusarium aquaeductuum. Taxonomy, fermentation, isolation, structure determination and biological propertiesJ. Antibiot. (Tokyo)46(11)1648-1657(1993) 2.Kwon, Y.-J., Fang, Y., Xu, G.-H., et al.Aquastatin A, a new inhibitor of enoyl-acyl carrier protein reductase from Sporothrix sp. FN611Biol. Pharm. Bull.32(12)2061-2064(2009) 3.Seo, C., Soh, J.H., Oh, H., et al.Isolation of the protein tyrosine phosphatase 1B inhibitory metabolite from the marine-derived fungus Cosmospora sp. SF-5060Bioorg. Med. Chem. Lett.19(21)6095-6097(2009)

TLQP-21 TFA, a VGF-derived peptide with endocrine and extraendocrine properties, acts as a potent G-protein-coupled receptor complement-3a receptor1 (C3aR1) agonist (EC50: mouse TLQP-21=10.3 μM; human TLQP-21=68.8 μM), activating C3aR1 to increase intracellular Ca2+ levels, and is used in research on nociception regulation and other relevant physiological functions[1][2].

Betamethasone 21-phosphate is a synthetic glucocorticoid.1It prevents increases in macrophage and eosinophil numbers in bronchoalveolar lavage fluid (BALF) and decreases in blood leukocyte numbers in a guinea pig model of parainfluenza-3 viral infection when administered at a dose of 8 mg/kg but does not prevent airway hyperresponsiveness after infection.2Betamethasone 21-phosphate inhibits cell infiltration into the aqueous humor in a rat model of endotoxin-induced uveitis when administered topically or subcutaneously at doses of 0.01-1% or 1 mg/kg, respectively.3It increases maximal lung pressure volume curves in fetal sheep when administered to pregnant ewes at 0.75 gestation at doses of 80 and 170 μg/kg.1Betamethasone 21-phosphate increases body weight, impairs learning and memory, increases anxiolytic behavior, and reduces hippocampal neurogenesis in CD-1 mice but reduces body weight and increases neurogenesis with no effect on anxiety in high-anxiety DBA/2 mice when administered at a dose of approximately 25 mg/kg per day in the drinking water for seven weeks.4Formulations containing betamethasone 12-phosphate and betamethasone acetate have been used in the treatment of severe allergic conditions and a variety of immune-related conditions. 1.Loehle, M., Schwab, M., Kadner, S., et al.Dose-response effects of betamethasone on maturation of the fetal sheep lungAm. J. Obstet. Gynecol.202(2)186.e181-186.e187(2010) 2.Leusink-Muis, A., Ten Broeke, R., Folkerts, G., et al.Betamethasone prevents virus-induced airway inflammation but not airway hyperresponsiveness in guinea pigsClin. Exp. Allergy29(Suppl. 2)82-85(1999) 3.Tsuji, F., Sawa, K., Kato, M., et al.The effects of betamethasone derivatives on endotoxin-induced uveitis in ratExp. Eye Res.64(1)31-36(1997) 4.Aiello, R., Crupi, R., Leo, A., et al.Long-term betamethasone 21-phosphate disodium treatment has distinct effects in CD1 and DBA/2 mice on animal behavior accompanied by opposite effects on neurogenesisBehav. Brain Res.278155-166(2015)

BE-24566B is a polyketide fungal metabolite originally isolated fromS. violaceusniger.1It is active againstB. subtilis,B. cereus,S. aureus,M. luteus,E. faecalis, andS. thermophilus(MICs = 1.56, 1.56, 1.56, 1.56, 3.13, and 3.13 μg/ml, respectively). BE-24566B is an endothelin (ET) receptor antagonist (IC50s = 11 and 3.9 μM for ETAand ETBreceptors, respectively).2 1.Kojiri, K., Nakajima, S., Fuse, A., et al.BE-24566B, a new antibiotic produced by Streptomyces violaceusnigerJ. Antibiot. (Tokyo)48(12)1506-1508(1995) 2.Lam, Y.K.T., Hensens, O., Helms, G., et al.L-755,805, a new polyketide endothelin binding inhibitor from an actinomyceteTetrahedron Lett.36(12)2013-2016(1995)

1-Deoxysphingosine (m18:1(4E)) is an atypical sphingolipid that contains a double bond at the 4E native position and is formed when serine palmitoyltransferase condenses palmitoyl-CoA with alanine instead of serine during sphingolipid synthesis.1,2 Plasma levels of 1-deoxysphingosine (m18:1(4E)) are increased in patients with chronic idiopathic axonal neuropathy (CIAP) and diabetic distal symmetrical polyneuropathy (DSPN).3 |1. Steiner, R., Saied, E.M., Othman, A., et al. Elucidating the chemical structure of native 1-deoxysphingosine. J. Lipid Res. 57(7), 1194-1203 (2016).|2. Alecu, I., Othman, A., Penno, A., et al. Cytotoxic 1-deoxysphingolipids are metabolized by a cytochrome P450-dependent pathway. J. Lipid Res. 58(1), 60-71 (2017).|3. Hube, L., Dohrn, M.F., Karsai, G., et al. Metabolic syndrome, neurotoxic 1-deoxysphingolipids and nervous tissue inflammation in chronic idiopathic axonal polyneuropathy (CIAP). PLoS One 12(1):e0170583, (2017).

HSV-1 HSV-2-IN-1 is an HSV-1 and HSV-2 inhibitor effective against HSV-1 (KOS) (EC50: 7.6 μM), HSV-2 (G) (EC50: 7.6 μM), HSV-1 TK-KOS ACVr (EC50: 4 μM), and cowpox virus (EC50: 12 μM).