Water
H₂O·18.015 g/mol·Inorganic·CID 962
EssentialSolvent
The most abundant compound on Earth's surface and the universal solvent essential for all known life. Its bent molecular geometry and hydrogen bonding give it anomalous properties like high boiling point and surface tension.
IUPAC: oxidane
Also known as: 7732-18-5, Distilled water, Dihydrogen oxide, Purified water, Sterile water (+14 more)
Molecular Structure
Molecular Propertiesmass · H-bonds · stereo
Molecular Weight
18.015g/mol
Exact Mass
18.010565Da
Monoisotopic Mass
18.010565Da
XLogP
-0.5
Polar Surface Area
1.0Ų
Complexity
0
Formal Charge
0
H-Bond Donors
1
H-Bond Acceptors
1
Rotatable Bonds
0
Heavy Atoms
1
Stereo Centers
0
Bond Stereo
0
Drug-Likeness (Lipinski's Rule of Five)
✓ 18.0 g/mol
MW ≤ 500
✓ -0.5
LogP ≤ 5
✓ 1
H-bond donors ≤ 5
✓ 1
H-bond acceptors ≤ 10
Passes all rules — good oral bioavailability predicted
GHS Hazard Classification
Warning
Hazards
H315Causes skin irritationH319Causes serious eye irritationH335May cause respiratory irritation
Source: PubChem GHS Classification. Always consult the SDS for handling.