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2D Structure
Also known as: Helium, isotope of mass 3, Helium he-3, (3he)helium, 14762-55-1, Helium, he-3, I83w8elb18
Molecular Formula
He
Molecular Weight
3.0160293220  g/mol
InChI Key
SWQJXJOGLNCZEY-BJUDXGSMSA-N
FDA UNII
I83W8ELB18

Helium He-3 is under investigation in clinical trial NCT00846014 (Asthma Exacerbation and Helium-3 MRI).
1 2D Structure

2D Structure

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
helium-3
2.1.2 InChI
InChI=1S/He/i1-1
2.1.3 InChI Key
SWQJXJOGLNCZEY-BJUDXGSMSA-N
2.1.4 Canonical SMILES
[He]
2.1.5 Isomeric SMILES
[3He]
2.2 Other Identifiers
2.2.1 UNII
I83W8ELB18
2.3 Synonyms
2.3.1 MeSH Synonyms

1. 3he Isotope

2. He-3 Isotope

2.3.2 Depositor-Supplied Synonyms

1. Helium, Isotope Of Mass 3

2. Helium He-3

3. (3he)helium

4. 14762-55-1

5. Helium, He-3

6. I83w8elb18

7. Unii-i83w8elb18

8. 3he Isotope

9. Helium-3 Atom

10. He-3 Isotope

11. Einecs 238-822-9

12. (3)he

13. Helium-3he, 99.8 Atom %

14. (3)2he

15. Chebi:30218

16. Db12940

17. Helium-3he, 99.95 Atom %, 99.9% (cp)

18. Q533498

19. Helium-3he, 99.95 Atom %, 99.995% (cp)

20. Helium-3he, 99.95 Atom %, 99.999% (cp)

21. Helium-3he, 99.9999 Atom %, 99.995% (cp)

2.4 Create Date
2006-06-21
3 Chemical and Physical Properties
Molecular Weight 3.0160293220 g/mol
Molecular Formula He
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count0
Rotatable Bond Count0
Exact Mass3.0160293220 g/mol
Monoisotopic Mass3.0160293220 g/mol
Topological Polar Surface Area0 Ų
Heavy Atom Count1
Formal Charge0
Complexity0
Isotope Atom Count1
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently Bonded Unit Count1