oxygen
O₂·31.999 g/mol·CID 977
IUPAC: molecular oxygen
Also known as: Molecular oxygen, oxygen molecule, Dioxygen, 7782-44-7, Pure oxygen (+14 more)
Molecular Structure
Molecular Propertiesmass · H-bonds · stereo
Molecular Weight
31.999g/mol
Exact Mass
31.989829Da
Monoisotopic Mass
31.989829Da
XLogP
-1.1
Polar Surface Area
34.1Ų
Complexity
0
Formal Charge
0
H-Bond Donors
0
H-Bond Acceptors
2
Rotatable Bonds
0
Heavy Atoms
2
Stereo Centers
0
Bond Stereo
0
Drug-Likeness (Lipinski's Rule of Five)
✓ 32.0 g/mol
MW ≤ 500
✓ -1.1
LogP ≤ 5
✓ 0
H-bond donors ≤ 5
✓ 2
H-bond acceptors ≤ 10
Passes all rules — good oral bioavailability predicted
GHS Hazard Classification
Danger
Hazards
H270May cause or intensify fire; oxidizerH280Contains gas under pressure; may explode if heatedH281Contains refrigerated gas; may cause cryogenic burns or injuryH335May cause respiratory irritationH361Suspected of damaging fertility or the unborn child
Source: PubChem GHS Classification. Always consult the SDS for handling.