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Technical details about Diphosphonate, Technetium Methylene, learn more about the structure, uses, toxicity, action, side effects and more

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2D Structure
1. Also known as: 8v3fgc4j77, Technetium tc-99m medronate anhydrous, Tc-99m-diphosphonate, Technetium diphosphonate, Tc-mdp, Tc-mdp tc-99m
Molecular Formula
CH2O6P2Tc
Molecular Weight
270.88  g/mol
InChI Key
DDVFLVSIVNKSLB-IEOVAKBOSA-J
FDA UNII
8V3FGC4J77

Technetium Tc-99m Medronate is a radiopharmaceutical containing methylene diphosphonate (medronate; MDP) complexed with the gamma-emitting radionuclide technetium Tc 99m with radioisotopic activity and hydroxyapatite affinity. Upon intravenous administration, skeletal uptake of technetium Tc 99m methylene diphosphonate occurs as a function of skeletal blood flow and osteogenic activity. The MDP moiety of this agent has affinity for hydroxyapatite crystals in bone with abnormal accumulation at sites with increased osteoid mineralization; labeling of MDP with Tc 99m allows scintigraphic imaging of areas of abnormal osteogenesis associated with malignant bone lesions.
1 2D Structure

2D Structure

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
dioxido-oxo-(phosphonatomethyl)-5-phosphane;technetium-99(4+)
2.1.2 InChI
InChI=1S/CH6O6P2.Tc/c2-8(3,4)1-9(5,6)7;/h1H2,(H2,2,3,4)(H2,5,6,7);/q;+4/p-4/i;1+1
2.1.3 InChI Key
DDVFLVSIVNKSLB-IEOVAKBOSA-J
2.1.4 Canonical SMILES
C(P(=O)([O-])[O-])P(=O)([O-])[O-].[Tc+4]
2.1.5 Isomeric SMILES
C(P(=O)([O-])[O-])P(=O)([O-])[O-].[99Tc+4]
2.2 Other Identifiers
2.2.1 UNII
8V3FGC4J77
2.3 Synonyms
2.3.1 MeSH Synonyms

1. Tc-99m-diphosphonate

2. Technetium Diphosphonate

3. Technetium Tc 99m Diphosphonate

2.3.2 Depositor-Supplied Synonyms

1. 8v3fgc4j77

2. Technetium Tc-99m Medronate Anhydrous

3. Tc-99m-diphosphonate

4. Technetium Diphosphonate

5. Tc-mdp

6. Tc-mdp Tc-99m

7. Technetium Tc 99m Diphosphonate

8. Technetium Tc-99m Diphosphonate

9. Diphosphonic Acid, Technetium-99tc Salt

10. Q27271059

11. Dioxido-oxo-(phosphonatomethyl)-lambda5-phosphane;technetium-99(4+)

12. Phosphonic Acid, Methylenebis-, Technetium(4+) Salt (1:1)

13. Phosphonic Acid, Methylenebis-, Technetium(4+)-99tc Salt (1:1)

2.4 Create Date
2006-10-25
3 Chemical and Physical Properties
Molecular Weight 270.88 g/mol
Molecular Formula CH2O6P2Tc
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count6
Rotatable Bond Count0
Exact Mass270.838911 g/mol
Monoisotopic Mass270.838911 g/mol
Topological Polar Surface Area126 Ų
Heavy Atom Count10
Formal Charge0
Complexity129
Isotope Atom Count1
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently Bonded Unit Count2
4 Pharmacology and Biochemistry
4.1 MeSH Pharmacological Classification

Radiopharmaceuticals

Compounds that are used in medicine as sources of radiation for radiotherapy and for diagnostic purposes. They have numerous uses in research and industry. (Martindale, The Extra Pharmacopoeia, 30th ed, p1161) (See all compounds classified as Radiopharmaceuticals.)


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