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Purity: ≥98%
Ticlopidine HCl (Ticlodix; Ticlodone; 53-32C; 5332C; trade name Ticlid), the hydrochloride salt of ticlopidine, is a potent P2 receptor inhibitor against used as antiplatelet and anticoagulant. It inhibits ADP-induced platelet aggregation with an IC50 of ~2 μM. Ticlopidine is an antiplatelet drug in the thienopyridine family which is an adenosine diphosphate (ADP) receptor inhibitor. Initial research showed that Ticlopidine was useful for preventing strokes and coronary stent occlusions. However, due to its serious side effects of neutropenia and thrombotic thrombocytopenic purpura, Ticlopidine was primarily used in patients in whom aspirin was not tolerated, or in whom dual antiplatelet therapy was desirable.
Targets |
adenosine diphosphate/ADP receptor
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ln Vitro |
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ln Vivo |
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Enzyme Assay |
Ticlopidine Hydrochloride is the hydrochloride salt form of ticlopidine, a thienopyridine derivative with anticoagulant property. Ticlopidine hydrochloride irreversibly inhibits adenosine-diphosphate (ADP)-induced platelet-fibrinogen binding by binding to the glycoprotein (GP) IIb/IIIA complex, one of the two purinergic receptors activated by ADP. Inhibition of the receptor activation causes the inhibition of adenylyl cyclase, results in decreased levels of cyclic adenosine monophosphate and thereby interferes with platelet membrane function and subsequent, platelet-platelet interaction, release of platelet granule constituents and prolongation of bleeding time.
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Cell Assay |
Cell Proliferation Assay[4]
Cell Types: Human endothelial cells Tested Concentrations: 30 and 150 µM Incubation Duration: 2, 6; 10 days Experimental Results: Treated cells grow slower if compared with controls and this effect correlates with the concentration of Ticlopidine in the culture medium. |
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Animal Protocol |
Ticlopidine, when orally administered to rats, resulted in activation of basal and prostaglandin E1 (PGE1)-stimulated adenylate cylase activity through increase in affinity of the cyclase in platelet membrane to PGE1, although it failed to affect adenosine- or sodium fluoride-stimulated activity of the enzyme. In washed platelets, Ticlopidine also activated basal and PGE1-stimulated activity of the cyclase and prevented reduction in the cyclase activity caused by low concentrations of PGE2. Furthermore, Ticlopidine inhibited malondialdehyde formation in platelets induced by thrombin but failed to inhibit that caused by exogenous arachidonic acid. Adenosine 3',5'-cyclic monophosphate (c-AMP): phosphodiesterase activity of platelet lysate was not significantly affected by Ticlopidine treatment. These findings indicate that Ticlopidine inhibits platelet aggregation and prostaglandin synthesis from endogenous substrate through activating basal and PGE1-stimulated activity of the cyclase, preventing PGE2-induced depression of the cyclase activity and thus increasing platelet c-AMP level.[2]
Ticlopidine is a new platelet aggregation inhibitor. The effect of this drug was studied on 55 subjects, healthy volunteers and hospitalized patients. The action requires 24 to 48 hr to appear, and lasts more than 3 days. A dose-effect relationship was studied with oral daily doses ranging from 250 to 1,000 mg during 1 wk; it showed a 50% inhibition on adenosine diphosphate (ADP)-induced aggregation at 2 muM concentration on an oral daily dose of 450 mg. No action was found on collagen-induced aggregation, and a mild effect was observed on platelet adhesiveness. Clinical tolerance was assessed in patients given ticlopidine in oral doses up to 500 mg/day during several weeks, showing no overt side effects and no change in the safety parameters.[1] |
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ADME/Pharmacokinetics |
Absorption
Absorption is greater than 80%. Food increases absorption by approximately 20%. Route of Elimination Ticlopidine is eliminated mostly in the urine (60%) and somewhat in the feces (23%). Volume of Distribution The volume of distribution was not quantified. Clearance Ticlopidine clearance was not quantified, but clearance decreases with age. Metabolism / Metabolites Ticlopidine is metabolized extensively by the liver with only trace amounts of intact drug detected. At least 20 metabolites have been identified. Ticlopidine has known human metabolites that include Ticlopidine S-oxide and Thienodihydropyridinium. Biological Half-Life Half-life following a single 250-mg dose is approximately 7.9 hours in subjects 20 to 43 years of age and 12.6 hours in subjects 65 to 76 years of age. With repeated dosing (250 mg twice a day), half-life is about 4 days in subjects 20 to 43 years of age and about 5 days in subjects 65 to 76 years of age. |
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Toxicity/Toxicokinetics |
Hepatotoxicity
Ticlopidine has been associated with serum enzyme elevations in approximately 4% of patients during therapy. These elevations are usually mild, asymptomatic and rarely require dose modification or stopping. Ticlopidine has also been associated with clinically apparent, acute liver injury. While these reactions are rare, more than 50 instances have been reported in the literature and some have been severe. The onset of symptoms is typically within 6 weeks (range 1 to 24 weeks) and marked by onset with fatigue, jaundice and itching. The usual pattern of liver enzyme elevations is cholestatic (~75%), but cases with mixed or hepatocellular enzyme elevations have also been described. Immunoallergic features such as fever, rash and eosinophilia can occur but are not common and, if present, are usually mild. Autoantibody formation is rare. Liver biopsy usually shows cholestatic hepatitis with mixed cellular infiltrates. Most cases are self-limited with recovery within 1 to 3 months, but isolated cases of prolonged jaundice or liver test abnormalities have been described, including at least one case of probable vanishing bile duct syndrome that eventually required liver transplantation. Ticlopidine therapy has also been associated with aplastic anemia and thrombotic thrombocytopenic purpura (TTP) that can be severe and lead to death; these patients may also have accompanying cholestatic liver injury. Protein Binding Binds reversibly (98%) to plasma proteins, mainly to serum albumin and lipoproteins. The binding to albumin and lipoproteins is nonsaturable over a wide concentration range. Ticlopidine also binds to alpha-1 acid glycoprotein (about 15% or less). women TDLo oral 350 mg/kg/5W-I women TDLo oral 1896 mg/kg/26W |
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References |
[1]. Clin Pharmacol Ther.1975 Oct;18(4):485-90;[2]. Thromb Haemost.1979 Apr 23;41(2):436-49.
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Additional Infomation |
Ticlopidine Hydrochloride is the hydrochloride salt form of ticlopidine, a thienopyridine derivative with anticoagulant property. Ticlopidine hydrochloride irreversibly inhibits adenosine-diphosphate (ADP)-induced platelet-fibrinogen binding by binding to the glycoprotein (GP) IIb/IIIA complex, one of the two purinergic receptors activated by ADP. Inhibition of the receptor activation causes the inhibition of adenylyl cyclase, results in decreased levels of cyclic adenosine monophosphate and thereby interferes with platelet membrane function and subsequent, platelet-platelet interaction, release of platelet granule constituents and prolongation of bleeding time.
An effective inhibitor of platelet aggregation commonly used in the placement of STENTS in CORONARY ARTERIES. See also: Ticlopidine (has active moiety). |
Molecular Formula |
C14H14CLNS.HCL
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Molecular Weight |
300.25
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Exact Mass |
299.03
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Elemental Analysis |
C, 56.01; H, 5.04; Cl, 23.61; N, 4.67; S, 10.68
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CAS # |
53885-35-1
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Related CAS # |
55142-85-3; 53885-35-1 (HCl)
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PubChem CID |
65335
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Appearance |
Typically exists as solid at room temperature
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Boiling Point |
367.3ºC at 760 mmHg
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Melting Point |
205°C
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Flash Point |
175.9ºC
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LogP |
4.699
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Hydrogen Bond Donor Count |
1
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Hydrogen Bond Acceptor Count |
2
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Rotatable Bond Count |
2
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Heavy Atom Count |
18
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Complexity |
261
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Defined Atom Stereocenter Count |
0
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SMILES |
ClC1=C([H])C([H])=C([H])C([H])=C1C([H])([H])N1C([H])([H])C2C([H])=C([H])SC=2C([H])([H])C1([H])[H].Cl[H]
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InChi Key |
MTKNGOHFNXIVOS-UHFFFAOYSA-N
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InChi Code |
InChI=1S/C14H14ClNS.ClH/c15-13-4-2-1-3-11(13)9-16-7-5-14-12(10-16)6-8-17-14;/h1-4,6,8H,5,7,9-10H2;1H
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Chemical Name |
5-(2-chlorobenzyl)-4,5,6,7-tetrahydrothieno[3,2-c]pyridine hydrochloride
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Synonyms |
Ticlodix; Ticlodone; Panaldine; Tiklid; Ticlopidine; Ticlopidine HCl; 53 32C; 53-32C; 5332C; trade name Ticlid
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HS Tariff Code |
2934.99.9001
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Storage |
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month Note: Please store this product in a sealed and protected environment, avoid exposure to moisture. |
Shipping Condition |
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
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Solubility (In Vitro) |
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Solubility (In Vivo) |
Solubility in Formulation 1: ≥ 2.5 mg/mL (8.33 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly. Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution. Solubility in Formulation 2: ≥ 2.5 mg/mL (8.33 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly. View More
Solubility in Formulation 3: 8.33 mg/mL (27.74 mM) in PBS (add these co-solvents sequentially from left to right, and one by one), clear solution; with ultrasonication (<60°C). |
Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
1 mM | 3.3306 mL | 16.6528 mL | 33.3056 mL | |
5 mM | 0.6661 mL | 3.3306 mL | 6.6611 mL | |
10 mM | 0.3331 mL | 1.6653 mL | 3.3306 mL |
*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.
Calculation results
Working concentration: mg/mL;
Method for preparing DMSO stock solution: mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.
Method for preparing in vivo formulation::Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.
(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
(2) Be sure to add the solvent(s) in order.