oxonium

[A positively charged ion having three hydrogen atoms and one oxygen atom. It is derived from the protonation of water and is the simplest form of the oxonium ion.

Molecular Formula: H₃O⁺

InChI: InChI=1/H2O/h1H2/p+1/fH3O/h1H/q+1

InChIKey: InChIKey=XLYOFNOQVPJJNP-QJFNTNGTCV
SMILES: [H][O+]([H])[H]

CAS number 13968-08-6

Names:
    Hydronium cation
    Hydronium ion
    H3O+
    oxidanium
    oxonium
    [OH3]+

Registries:
    PubChem CID 123332
    CAS 13968-08-6 (from NIST)
    ChEBI 29412
    Gmelin 141
    MolBase 1646
    PubChem ID 10240578