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CHEMISTRY
Discover Molecule Insights

ACTIVE PHARMA INGREDIENTS

1 API Suppliers, 1 USDMF

1 API Suppliers
1 USDMF

FINISHED DOSAGE FORMULATIONS

1 FDF Dossiers, 1 FDA Orange Book

1 FDF Dossiers
1 FDA Orange Book

Synopsis

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Chemistry

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Also known as: Krypton kr 81m, Krypton-81m, Krypton (81mkr), Krypton, kr-81m, Krypton (81m kr), Krypton (81mkr) gas

Molecular Formula

Molecular Weight

80.91659 g/mol

InChI Key

DNNSSWSSYDEUBZ-OIOBTWANSA-N

FDA UNII

68QN45K12N

1 2D Structure

Krypton-81

2 Identification

2.1 Computed Descriptors

2.1.1 IUPAC Name

krypton-81

2.1.2 InChI

InChI=1S/Kr/i1-3

2.1.3 InChI Key

DNNSSWSSYDEUBZ-OIOBTWANSA-N

2.1.4 Canonical SMILES

[Kr]

2.1.5 Isomeric SMILES

[81Kr]

2.2 Other Identifiers

2.2.1 UNII

68QN45K12N

2.3 Synonyms

2.3.1 MeSH Synonyms

1. 81kr Radioisotope

2. Kr-81 Radioisotope

2.3.2 Depositor-Supplied Synonyms

1. Krypton Kr 81m

2. Krypton-81m

3. Krypton (81mkr)

4. Krypton, Kr-81m

5. Krypton (81m Kr)

6. Krypton (81mkr) Gas

7. Krypton, Isotope Of Mass 81

8. Krypton Kr-81m

9. 15678-91-8

10. Krypton Kr 81m Gas Generator

11. 68qn45k12n

12. Krypton, Isotope Of Mass 81 (metastable)

13. Mpi Krypton 81m Generator

14. Krypton Kr 81m [usan]

15. Unii-68qn45k12n

16. Krypton Kr 81m [usan:usp]

17. Mpi Krypton Kr 81m Gas Generator

18. Krypton Kr 81m (usp)

19. 81mkr

20. Krypton-81m [mart.]

21. Chembl1201096

22. Dtxsid80935528

23. Chebi:136002

24. Mpi Krypton 81m Gas Generator (tn)

25. Krypton (81m Kr) [who-dd]

26. Db09443

27. Krypton, Kr-81m [orange Book]

28. D04656

29. Q18880414

2.4 Create Date

2005-08-08

3 Chemical and Physical Properties

Molecular Formula	Kr
Molecular Weight	80.91659 g/mol
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	0
Rotatable Bond Count	0
Exact Mass	80.91659 g/mol
Monoisotopic Mass	80.91659 g/mol
Topological Polar Surface Area	0 Å²
Heavy Atom Count	1
Formal Charge	0
Complexity	0
Isotope Atom Count	1
Defined Atom Stereocenter Count	0
Undefined Atom Stereocenter Count	0
Defined Bond Stereocenter Count	0
Undefined Bond Stereocenter Count	0
Covalently Bonded Unit Count	1