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2D Structure
Also known as: 120202-65-5, 426o7xws6y, Clopidogrel (tn), Unii-426o7xws6y, Clopidogrel hcl, Clopidogrel-hcs
Molecular Formula
C16H17Cl2NO2S
Molecular Weight
358.3  g/mol
InChI Key
XIHVAFJSGWDBGA-RSAXXLAASA-N
FDA UNII
426O7XWS6Y

A ticlopidine analog and platelet purinergic P2Y receptor antagonist that inhibits adenosine diphosphate-mediated PLATELET AGGREGATION. It is used to prevent THROMBOEMBOLISM in patients with ARTERIAL OCCLUSIVE DISEASES; MYOCARDIAL INFARCTION; STROKE; or ATRIAL FIBRILLATION.
1 2D Structure

2D Structure

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
methyl (2S)-2-(2-chlorophenyl)-2-(6,7-dihydro-4H-thieno[3,2-c]pyridin-5-yl)acetate;hydrochloride
2.1.2 InChI
InChI=1S/C16H16ClNO2S.ClH/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;1H/t15-;/m0./s1
2.1.3 InChI Key
XIHVAFJSGWDBGA-RSAXXLAASA-N
2.1.4 Canonical SMILES
COC(=O)C(C1=CC=CC=C1Cl)N2CCC3=C(C2)C=CS3.Cl
2.1.5 Isomeric SMILES
COC(=O)[C@H](C1=CC=CC=C1Cl)N2CCC3=C(C2)C=CS3.Cl
2.2 Other Identifiers
2.2.1 UNII
426O7XWS6Y
2.3 Synonyms
2.3.1 MeSH Synonyms

1. Clopidogrel

2. Clopidogrel Besilate

3. Clopidogrel Besylate

4. Clopidogrel Bisulfate

5. Clopidogrel Mepha

6. Clopidogrel Napadisilate

7. Clopidogrel Sandoz

8. Clopidogrel, (+)(s)-isomer

9. Clopidogrel-mepha

10. Iscover

11. Pcr 4099

12. Pcr-4099

13. Plavix

14. Sc 25989c

15. Sc 25990c

16. Sr 25989

2.3.2 Depositor-Supplied Synonyms

1. 120202-65-5

2. 426o7xws6y

3. Clopidogrel (tn)

4. Unii-426o7xws6y

5. Clopidogrel Hcl

6. Clopidogrel-hcs

7. Clopidogrel-tad

8. Clopidogrel-dura

9. Clopidogrel-hydrochlorid

10. Clopidogrel-krka

11. Clopidogrel Mylan

12. Clopidogrel Qualimed

13. Clopidogrel Teva Pharma

14. Schembl1031047

15. Dtxsid40152734

16. Clopidogrel Teva Generics B.v.

17. Clopidogrel Hydrochloride [who-dd]

18. Clopidogrel Hydrochloride [ema Epar]

19. Cs-0165212

20. Clopidogrel Hydrochloride [ep Monograph]

21. D10823

22. Q27258500

23. (s)-methyl 2-(2-chlorophenyl)-2-(6,7-dihydrothieno[3,2-c]pyridin-5(4h)-yl)acetate Hydrochloride? (clopidogrel Impurity Pound(c)

24. Methyl (2s)-2-(2-chlorophenyl)-2-(6,7-dihydro-4h-thieno[3,2-c]pyridin-5-yl)acetate;hydrochloride

25. Methyl-(s)-(+)-(2-chlorophenyl)-2-(6,7-dihydro-4h-thieno[3,2-c]pyridine-5-yl)-acetate Hydrochloride

26. Thieno(3,2-c)pyridine-5(4h)-acetic Acid, .alpha.-(2-chlorophenyl)-6,7-dihydro-, Methyl Ester, Hydrochloride, (s)-

2.4 Create Date
2006-10-25
3 Chemical and Physical Properties
Molecular Weight 358.3 g/mol
Molecular Formula C16H17Cl2NO2S
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count4
Rotatable Bond Count4
Exact Mass357.0357053 g/mol
Monoisotopic Mass357.0357053 g/mol
Topological Polar Surface Area57.8 Ų
Heavy Atom Count22
Formal Charge0
Complexity381
Isotope Atom Count0
Defined Atom Stereocenter Count1
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently Bonded Unit Count2
4 Drug and Medication Information
4.1 Drug Indication

Secondary prevention of atherothrombotic events

Clopidogrel is indicated in:

- Adult patients suffering from myocardial infarction (from a few days until less than 35 days), ischaemic stroke (from 7 days until less than 6 months) or established peripheral arterial disease.

- Adult patients suffering from acute coronary syndrome:

- Non-ST segment elevation acute coronary syndrome (unstable angina or non-Q-wave myocardial infarction), including patients undergoing a stent placement following percutaneous coronary intervention, in combination with acetylsalicylic acid (ASA).

- ST segment elevation acute myocardial infarction, in combination with ASA in medically treated patients eligible for thrombolytic therapy.

In patients with moderate to high-risk Transient Ischaemic Attack (TIA) or minor Ischaemic Stroke (IS)

Clopidogrel in combination with ASA is indicated in:

- Adult patients with moderate to high-risk TIA (ABCD2 score 4) or minor IS (NIHSS 3) within 24 hours of either the TIA or IS event.

Prevention of atherothrombotic and thromboembolic events in atrial fibrillation

In adult patients with atrial fibrillation who have at least one risk factor for vascular events, are not suitable for treatment with Vitamin K antagonists (VKA) and who have a low bleeding risk, clopidogrel is indicated in combination with ASA for the prevention of atherothrombotic and thromboembolic events, including stroke.

For further information please refer to section 5. 1.


Clopidogrel is indicated in adults for the prevention of atherothrombotic events in:

- Patients suffering from myocardial infarction (from a few days until less than 35 days), ischaemic stroke (from 7 days until less than 6 months) or established peripheral arterial disease.

For further information please refer to section 5. 1.


Clopidogrel is indicated in adults for the prevention of atherothrombotic events in:

- Patients suffering from myocardial infarction (from a few days until less than 35 days), ischaemic stroke (from 7 days until less than 6 months) or established peripheral arterial disease.

- Patients suffering from acute coronary syndrome:

- Non-ST segment elevation acute coronary syndrome (unstable angina or non-Q-wave myocardial infarction), including patients undergoing a stent placement following percutaneous coronary intervention, in combination with acetylsalicylic acid (ASA).

- ST segment elevation acute myocardial infarction, in combination with ASA in medically treated patients eligible for thrombolytic therapy.

For further information please refer to section 5. 1.


5 Pharmacology and Biochemistry
5.1 MeSH Pharmacological Classification

Purinergic P2Y Receptor Antagonists

Compounds that bind to and block the stimulation of PURINERGIC P2Y RECEPTORS. Included under this heading are antagonists for specific P2Y receptor subtypes. (See all compounds classified as Purinergic P2Y Receptor Antagonists.)


Platelet Aggregation Inhibitors

Drugs or agents which antagonize or impair any mechanism leading to blood platelet aggregation, whether during the phases of activation and shape change or following the dense-granule release reaction and stimulation of the prostaglandin-thromboxane system. (See all compounds classified as Platelet Aggregation Inhibitors.)


5.2 ATC Code

B01AC04


B01AC06


B01AC04