Clopidogrel

P2Y12 receptor antagonist CAS# 120202-66-6

Clopidogrel

Catalog No. BCC2497----Order now to get a substantial discount!

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Chemical structure

Clopidogrel

3D structure

Chemical Properties of Clopidogrel

Cas No. 120202-66-6 SDF Download SDF
PubChem ID 60606 Appearance Powder
Formula C16H16ClNO2S M.Wt 321.82
Type of Compound N/A Storage Desiccate at -20°C
Synonyms 113665-84-2;Plavix;(S)-Clopidogrel;(+)-(S)-Clopidogrel
Solubility DMSO : ≥ 46.7 mg/mL (111.22 mM)
H2O : 16.67 mg/mL (39.70 mM; Need ultrasonic)
*"≥" means soluble, but saturation unknown.
Chemical Name methyl (2S)-2-(2-chlorophenyl)-2-(6,7-dihydro-4H-thieno[3,2-c]pyridin-5-yl)acetate
SMILES COC(=O)C(C1=CC=CC=C1Cl)N2CCC3=C(C2)C=CS3
Standard InChIKey GKTWGGQPFAXNFI-HNNXBMFYSA-N
Standard InChI InChI=1S/C16H16ClNO2S/c1-20-16(19)15(12-4-2-3-5-13(12)17)18-8-6-14-11(10-18)7-9-21-14/h2-5,7,9,15H,6,8,10H2,1H3/t15-/m0/s1
General tips For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.
We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months.
Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it.
About Packaging 1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial.
2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial.
3. Try to avoid loss or contamination during the experiment.
Shipping Condition Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request.

Biological Activity of Clopidogrel

DescriptionClopidogrel is an oral, thienopyridine class antiplatelet agent.Clopidogrel is converted to its active metabolite by cytochrome P450 (CYP) enzymes. Clopidogrel (1 μM) also inhibits EGF-stimulated EGF receptor, PERK expression, and cell proliferation in RGM-1 cells (P<0.05), and causes much less inhibition of EGF-stimulated cell proliferation in EGF receptor over-expressed RGM-1 cells than in RGM-1 cells (22% vs. 32% reduction). Clopidogrel increases blood vessel number, reduces polymorphonuclear count and decreases attachment and bone loss, also decreases osteoclast number in rats submitted or not to periodontal repair. Clopidogrel decreases CXCL4, CXCL12 and PDGF content compared with saline-treated rats, without affecting CXCL5. Clopidogrel (2mg and 10mg/kg/day) significantly decreases ulcer-induced gastric epithelial cell proliferation and ulcer-stimulated expressions of EGF receptor and phosphorylated extracellular signal-regulated kinase (PERK) at the ulcer margin of rats. Clopidogrel improves endothelial function and NO bioavailability in rats with congestive heart failure. Clopidogrel-treated Congestive heart failure (CHF) rat displays enhances phosphorylation of AKT and eNOS. The clopidogrel/aspirin combination shows only additive-type effects on bleeding time prolongation induced by ear transection in the rabbit, therefore showing that combined inhibition of cyclooxygenase and ADP's effects provide a marked enhanced antithrombotic efficacy.

Clopidogrel Dilution Calculator

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Clopidogrel Molarity Calculator

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Preparing Stock Solutions of Clopidogrel

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 3.1073 mL 15.5366 mL 31.0733 mL 62.1465 mL 77.6832 mL
5 mM 0.6215 mL 3.1073 mL 6.2147 mL 12.4293 mL 15.5366 mL
10 mM 0.3107 mL 1.5537 mL 3.1073 mL 6.2147 mL 7.7683 mL
50 mM 0.0621 mL 0.3107 mL 0.6215 mL 1.2429 mL 1.5537 mL
100 mM 0.0311 mL 0.1554 mL 0.3107 mL 0.6215 mL 0.7768 mL
* Note: If you are in the process of experiment, it's necessary to make the dilution ratios of the samples. The dilution data above is only for reference. Normally, it's can get a better solubility within lower of Concentrations.

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Background on Clopidogrel

Selective, high affinity P2Y12 receptor antagonist. Inhibits ADP-induced platelet aggregation and displays antithrombotic activity. Active enantiomer of (±)-clopidogrel hydrochloride.

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References on Clopidogrel

Effects of clopidogrel on inflammatory cytokines and adhesion molecules in human endothelial cells: Role of nitric oxide mediating pleiotropic effects.[Pubmed:28371087]

Cardiovasc Ther. 2017 Aug;35(4).

INTRODUCTION: Clopidogrel is commonly used in prevention and treatment of atherothrombosis. Some previous studies have suggested a pleiotropic effect of Clopidogrel; however, when this drug causes platelet-independent effects on endothelial function remains unclear. AIMS: To evaluate the influence of Clopidogrel on inflammatory biomarkers and adhesion molecules in human endothelial cells and the role of nitric oxide (NO) in this process. METHODS: TNF-alpha-induced human umbilical vein endothelial cells (HUVEC) were exposed to Clopidogrel. Gene expression and protein expression of ICAM-1, P-selectin, IL-8, IL-6, and MCP-1 were evaluated by qPCR, flux cytometry, or milliplex technology. Expression of endothelial nitric oxide synthase (NOS3) and NO release were also evaluated. Influence of Clopidogrel was further evaluated in NOS3 downregulated HUVEC by RNAi. RESULTS: Clopidogrel at 20 mumol/L induced NO release in HUVEC after 24-hours treatment. Gene expressions of inflammatory markers IL-8 and MCP1 were reduced after Clopidogrel treatment (P<.05); however, only MCP-1 remained reduced at protein level. IL-6 was not modified by Clopidogrel treatment. Gene expression and protein expression of ICAM-1 were diminished by 24-hours Clopidogrel exposure, whereas P-selectin was not modified. NOS3 downregulated HUVEC model revealed that ICAM-1 modification by Clopidogrel is dependent of this via, whereas MCP-1 is modulated in an NO-independent form. CONCLUSIONS: Our results support new evidence for pleiotropic effects of Clopidogrel on inflammation and endothelial function. Reduction in ICAM-1 and MCP-1 in human endothelium is an important extent of the use of this drug for treatment of cardiovascular diseases, and NO has an important role in this process.

Policy objective of generic medicines from the investment perspective: The case of clopidogrel.[Pubmed:28343810]

Health Policy. 2017 May;121(5):558-565.

The objective of generic drug policies in most countries is defined from a disinvestment perspective: reduction in expenditures without compromising health outcomes. However, in countries with restricted access of patients to original patented drugs, the objective of generic drug policies can also be defined from an investment perspective: health gain by improved patient access without need for additional health budget. This study examines the investment aspect of generic medicines by analyzing Clopidogrel utilization in European countries between 2004 and 2014 using multilevel panel data models. We find that Clopidogrel consumption was strongly affected by affordability constraints before the generic entry around 2009, but this effect decayed by 2014. After controlling for other variables, utilization had a substantially larger trend increase in lower-income European countries than in the higher-income ones. Generic entry increased Clopidogrel consumption only in lower- and average-income countries but not in the highest-income ones. An earlier generic entry was associated with a larger effect. The case of Clopidogrel indicates that the entrance of generics may increase patient access to effective medicines, most notably in lower-income countries, thereby reducing inequalities between European patients. Policymakers should also consider this investment aspect of generic medicines when designing pharmaceutical policies.

The risk of clopidogrel resistance is associated with ABCB1 polymorphisms but not promoter methylation in a Chinese Han population.[Pubmed:28358842]

PLoS One. 2017 Mar 30;12(3):e0174511.

The goal of our study was to investigate the contribution of ABCB1 expression to the risk of Clopidogrel resistance (CR). Platelets functions were measured using the Verify-Now P2Y12 assay. Applying Polymerase Chain Reaction-Restriction Fragment Length Polymorphism (PCR-RFLP), the single-nucleotide polymorphisms (SNPs) was tested. Using bisulphite pyrosequencing assay, we investigated the association of the ABCB1 DNA methylation levels and CR. It was shown that female, hypertension, and lower albumin levels increased the risk of CR (P<0.05). If patients did not have hypoproteinaemia or had hypertension, the SNP in rs1045642 was associated with CR (CC vs. TT: albumin >/=35, P = 0.042; hypertension, P = 0.045; C vs. T: albumin >/=35, P = 0.033; hypertension, P = 0.040). Additionally, the platelet inhibition of the CT+TT genotype in rs1128503 was larger than that of the CC genotype (P = 0.021). Multivariate logistic regression analysis showed that male, higher albumin and hsCRP decreased the risk of CR, and the stent size maybe positively correlated with CR. The SNP in rs1045642 was related to all-cause mortality (P = 0.024). We did not find any relationship between the methylation levels of the ABCB1 promoter and CR. In conclusions, our study indicated that ABCB1 polymorphisms might be useful in further evaluating the pathogenesis of CR.

Impact of Diabetes Mellitus on the Pharmacodynamic Effects of Ticagrelor Versus Clopidogrel in Troponin-Negative Acute Coronary Syndrome Patients Undergoing Ad Hoc Percutaneous Coronary Intervention.[Pubmed:28356282]

J Am Heart Assoc. 2017 Mar 29;6(4). pii: JAHA.117.005650.

BACKGROUND: Diabetes mellitus (DM) is associated with enhanced platelet reactivity and impaired response to oral antiplatelet therapy, including Clopidogrel. This post hoc analysis investigated the pharmacodynamic effects of ticagrelor versus Clopidogrel loading dose (LD) in troponin-negative acute coronary syndrome patients with or without DM undergoing percutaneous coronary intervention in the Ad Hoc PCI study. METHODS AND RESULTS: Patients randomized (1:1) to receive ticagrelor 180 mg LD or Clopidogrel 600 mg LD were assessed by diabetic status. Platelet reactivity (P2Y12 reaction units [PRU] on VerifyNow((R)) assay) was measured pre-LD, at 0.5, 2, and 8 hours post-LD, and at the end of the percutaneous coronary intervention. The primary endpoint was PRU levels 2 hours post-LD; secondary endpoints included rates of high on-treatment platelet reactivity (PRU>/=208). Of 100 randomized patients, 51 received ticagrelor (DM, n=20; non-DM, n=31) and 49 Clopidogrel (DM, n=16; non-DM, n=33). At 2 hours post-LD, mean (SD) PRU levels in DM patients were 130.1 (111.7) with ticagrelor versus 287.6 (71.9) with Clopidogrel (mean [95%CI] difference -157.5 [-225.3, -89.8]; P<0.001); in non-DM patients, they were 75.3 (75.7) versus 243.0 (72.4) (mean difference -167.7 [-207.1, -128.3]; P<0.001). High on-treatment platelet reactivity rates at 2 hours post-LD were also significantly (P<0.001) reduced with ticagrelor versus Clopidogrel in DM and non-DM patients. Between-treatment differences for PRU and high on-treatment platelet reactivity were not significant at earlier time points but were at 8 hours post-LD (P<0.001). CONCLUSIONS: Compared with Clopidogrel, ticagrelor achieved faster, enhanced platelet inhibition and reduced high on-treatment platelet reactivity rates, in DM and non-DM patients. CLINICAL TRIAL REGISTRATION: URL: http://www.clinicaltrials.gov. Unique identifier: NCT01603082.

Pharmacological profiles of cloned mammalian P2Y-receptor subtypes.[Pubmed:16257449]

Pharmacol Ther. 2006 Jun;110(3):415-32.

Membrane-bound P2-receptors mediate the actions of extracellular nucleotides in cell-to-cell signalling. P2X-receptors are ligand-gated ion channels, whereas P2Y-receptors belong to the superfamily of G-protein-coupled receptors (GPCRs). So far, the P2Y family is composed out of 8 human subtypes that have been cloned and functionally defined; species orthologues have been found in many vertebrates. P2Y1-, P2Y2-, P2Y4-, P2Y6-, and P2Y11-receptors all couple to stimulation of phospholipase C. The P2Y11-receptor mediates in addition a stimulation of adenylate cyclase. In contrast, activation of the P2Y12-, P2Y13-, and P2Y14-receptors causes an inhibition of adenylate cyclase activity. The expression of P2Y1-receptors is widespread. The receptor is involved in blood platelet aggregation, vasodilatation and neuromodulation. It is activated by ADP and ADP analogues including 2-methylthio-ADP (2-MeSADP). 2'-Deoxy-N6-methyladenosine-3',5'-bisphosphate (MRS2179) and 2-chloro-N6-methyl-(N)-methanocarba-2'-deoxyadenosine 3',5'-bisphosphate (MRS2279) are potent and selective antagonists. P2Y2 transcripts are abundantly distributed. One important example for its functional role is the control of chloride ion fluxes in airway epithelia. The P2Y2-receptor is activated by UTP and ATP and blocked by suramin. The P2Y2-agonist diquafosol is used for the treatment of the dry eye disease. P2Y4-receptors are expressed in the placenta and in epithelia. The human P2Y4-receptor has a strong preference for UTP as agonist, whereas the rat P2Y4-receptor is activated about equally by UTP and ATP. The P2Y4-receptor is not blocked by suramin. The P2Y6-receptor has a widespread distribution including heart, blood vessels, and brain. The receptor prefers UDP as agonist and is selectively blocked by 1,2-di-(4-isothiocyanatophenyl)ethane (MRS2567). The P2Y11-receptor may play a role in the differentiation of immunocytes. The human P2Y11-receptor is activated by ATP as naturally occurring agonist and it is blocked by suramin and reactive blue 2 (RB2). The P2Y12-receptor plays a crucial role in platelet aggregation as well as in inhibition of neuronal cells. It is activated by ADP and very potently by 2-methylthio-ADP. Nucleotide antagonists including N6-(2-methylthioethyl)-2-(3,3,3-trifluoropropylthio)-beta,gamma-dichloromethylene -ATP (=cangrelor; AR-C69931MX), the nucleoside analogue AZD6140, as well as active metabolites of the thienopyridine compounds Clopidogrel and prasugrel block the receptor. These P2Y12-antagonists are used in pharmacotherapy to inhibit platelet aggregation. The P2Y13-receptor is expressed in immunocytes and neuronal cells and is again activated by ADP and 2-methylthio-ADP. The 2-chloro-5-nitro pyridoxal-phosphate analogue 6-(2'-chloro-5'-nitro-azophenyl)-pyridoxal-alpha5-phosphate (MRS2211) is a selective antagonist. mRNA encoding for the human P2Y14-receptor is found in many tissues. However, a physiological role of the receptor has not yet been established. UDP-glucose and related analogues act as agonists; antagonists are not known. Finally, UDP has been reported to act on receptors for cysteinyl leukotrienes as an additional agonist--indicating a dual agonist specificity of these receptors.

Description

Clopidogrel hydrogen sulfate is an antiplatelet agent which works by blocking platelets from sticking together and prevents them from forming harmful clots.

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