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2D Structure
Also known as: 26970-82-1, Disodium selenite pentahydrate, Selenious acid, disodium salt, pentahydrate, Disodium;selenite;pentahydrate, 0wv4l961zv, Ccris 1378
Molecular Formula
H10Na2O8Se
Molecular Weight
263.03  g/mol
InChI Key
TUANAMBRHOLYTH-UHFFFAOYSA-L
FDA UNII
0WV4L961ZV

The disodium salt of selenious acid. It is used therapeutically to supply the trace element selenium and is prepared by the reaction of SELENIUM DIOXIDE with SODIUM HYDROXIDE.
1 2D Structure

2D Structure

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
disodium;selenite;pentahydrate
2.1.2 InChI
InChI=1S/2Na.H2O3Se.5H2O/c;;1-4(2)3;;;;;/h;;(H2,1,2,3);5*1H2/q2*+1;;;;;;/p-2
2.1.3 InChI Key
TUANAMBRHOLYTH-UHFFFAOYSA-L
2.1.4 Canonical SMILES
O.O.O.O.O.[O-][Se](=O)[O-].[Na+].[Na+]
2.2 Other Identifiers
2.2.1 UNII
0WV4L961ZV
2.3 Synonyms
2.3.1 MeSH Synonyms

1. Biselenite, Sodium

2. Disodium Selenite

3. Monosodium Selenite

4. Pentahydrate, Sodium Selenite

5. Selenite Pentahydrate, Sodium

6. Selenite, Disodium

7. Selenite, Monosodium

8. Selenite, Sodium

9. Selenous Acid Disodium Salt

10. Selenous Acid, Disodium Salt

11. Sodium Biselenite

12. Sodium Selenite

2.3.2 Depositor-Supplied Synonyms

1. 26970-82-1

2. Disodium Selenite Pentahydrate

3. Selenious Acid, Disodium Salt, Pentahydrate

4. Disodium;selenite;pentahydrate

5. 0wv4l961zv

6. Ccris 1378

7. Sodiumselenitepentahydrate

8. Na2seo3.5h2o

9. Unii-0wv4l961zv

10. Mfcd00149173

11. Sodium Selenite Hydrate

12. Disodium Selenite Hydrate

13. Sodium Selenite 5-hydrate

14. Sodium Selenite Pentahydate

15. Sodium Selenite--water (1/5)

16. Dtxsid90181473

17. Chebi:131361

18. Akos030242205

19. Selenious Acid Disodium Salt, Pentahydrate

20. Ft-0700606

21. Sodium Selenite Pentahydrate [who-dd]

22. A800315

23. Sodium Selenite Pentahydrate [ep Monograph]

24. J-016634

25. Q27225115

2.4 Create Date
2005-08-08
3 Chemical and Physical Properties
Molecular Weight 263.03 g/mol
Molecular Formula H10Na2O8Se
Hydrogen Bond Donor Count5
Hydrogen Bond Acceptor Count8
Rotatable Bond Count0
Exact Mass263.93363 g/mol
Monoisotopic Mass263.93363 g/mol
Topological Polar Surface Area68.2 Ų
Heavy Atom Count11
Formal Charge0
Complexity18.8
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently Bonded Unit Count8
4 Pharmacology and Biochemistry
4.1 MeSH Pharmacological Classification

Trace Elements

A group of chemical elements that are needed in minute quantities for the proper growth, development, and physiology of an organism. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) (See all compounds classified as Trace Elements.)