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2D Structure
Also known as: Thallium-201 chloride, Allous chloride tl-201, Thallous chloride t1-201, (201)tlcl, (201-tl)thallous chloride, Thallium-201(1+) chloride
Molecular Formula
ClTl
Molecular Weight
236.42  g/mol
InChI Key
GBECUEIQVRDUKB-RYDPDVNUSA-M

Thallous Chloride Tl-201 is the chloride salt form of thallium-201, a cyclotron produced isotope use in diagnostic imaging. Thallous chloride TI-201 accumulates in myocardial cells and other tissues in an analogous way as potassium, and can be evaluated as a function of blood flow. By scintigraphic means, areas with decreased blood flow, consisting of ischemic cells, can be visualized due to decreased uptake of TI-201 in contrast to areas with normal blood flow.
1 2D Structure

2D Structure

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
chloro(201Tl)thallium-201
2.1.2 InChI
InChI=1S/ClH.Tl/h1H;/q;+1/p-1/i;1-3
2.1.3 InChI Key
GBECUEIQVRDUKB-RYDPDVNUSA-M
2.1.4 Canonical SMILES
Cl[Tl]
2.1.5 Isomeric SMILES
Cl[201Tl]
2.2 Synonyms
2.2.1 Depositor-Supplied Synonyms

1. Thallium-201 Chloride

2. Allous Chloride Tl-201

3. Thallous Chloride T1-201

4. (201)tlcl

5. (201-tl)thallous Chloride

6. Thallium-201(1+) Chloride

7. Unii-3i8y076a0e

8. Thallous Chloride (201tlcl)

9. ((201)tl)thallium Monochloride

10. Chebi:32213

11. ((201)tl)thallium(i) Chloride

12. ((201)tl)thallium(1+) Chloride

13. Thallium Chloride ((sup 201)tlcl)

14. Thallous Chloride Tl 201 [usan:usp]

15. Thallium Chloride ((sup 201)tl) Injection

16. Q27114831

2.3 Create Date
2007-04-03
3 Chemical and Physical Properties
Molecular Weight 236.42 g/mol
Molecular Formula ClTl
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count0
Rotatable Bond Count0
Exact Mass235.9397 g/mol
Monoisotopic Mass235.9397 g/mol
Topological Polar Surface Area0 Ų
Heavy Atom Count2
Formal Charge0
Complexity2
Isotope Atom Count1
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently Bonded Unit Count1
4 Drug and Medication Information
4.1 Drug Information
1 of 2  
Drug NameThallous chloride tl 201
PubMed HealthThallous Chloride Tl 201 (Injection)
Drug ClassesDiagnostic Agent, Radiopharmaceutical Imaging
Active IngredientThallous chloride tl-201
Dosage FormInjectable
RouteInjection; Intravenous
Strength1mci/ml; 2mci/ml
Market StatusPrescription
CompanyMallinckrodt; Lantheus Medcl; Ge Healthcare

2 of 2  
Drug NameThallous chloride tl 201
PubMed HealthThallous Chloride Tl 201 (Injection)
Drug ClassesDiagnostic Agent, Radiopharmaceutical Imaging
Active IngredientThallous chloride tl-201
Dosage FormInjectable
RouteInjection; Intravenous
Strength1mci/ml; 2mci/ml
Market StatusPrescription
CompanyMallinckrodt; Lantheus Medcl; Ge Healthcare

5 Pharmacology and Biochemistry
5.1 FDA Pharmacological Classification
5.1.1 Pharmacological Classes
Radiopharmaceutical Activity [MoA]; Radioactive Diagnostic Agent [EPC]