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Compound Summary for: CID 23987


Also known as: Atomic helium; Helium-4; p-Helium; O-Helium; UNII-206GF3GB41; HSDB 553; 7440-59-7; CHEBI:33681; EINECS 231-168-5
Molecular Formula: He   Molecular Weight: 4.002602   InChIKey: SWQJXJOGLNCZEY-UHFFFAOYSA-N
Helium. A noble gas with the atomic symbol He, atomic number 2, and atomic weight 4.003. It is a colorless, odorless, tasteless gas that is not combustible and does not support combustion. It was first detected in the sun and is now obtained from natural gas. Medically it is used as a diluent for other gases, being especially useful with oxygen in the treatment of certain cases of respiratory obstruction, and as a vehicle for general anesthetics. (Dorland, 27th ed)   From: MeSH
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Use and Manufacturing
Biomedical Effects and Toxicity
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Environmental Fate and Exposure Potential
Exposure Standards and Regulations
Biological Test Results
Chemical and Physical Properties
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