CHEBI:18421 - superoxide

Main ChEBI Ontology Automatic Xrefs Reactions Pathways Models
ChEBI Name superoxide
ChEBI ID CHEBI:18421
Stars This entity has been manually annotated by the ChEBI Team.
Secondary ChEBI IDs CHEBI:7710, CHEBI:15143, CHEBI:26839
Supplier Information No supplier information found for this compound.
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In chemistry, a superoxide is a compound that contains the superoxide ion, which has the chemical formula O−2. The systematic name of the anion is dioxide(1−). The reactive oxygen ion superoxide is particularly important as the product of the one-electron reduction of dioxygen O2, which occurs widely in nature. Molecular oxygen (dioxygen) is a diradical containing two unpaired electrons, and superoxide results from the addition of an electron which fills one of the two degenerate molecular orbitals, leaving a charged ionic species with a single unpaired electron and a net negative charge of −1. Both dioxygen and the superoxide anion are free radicals that exhibit paramagnetism. Superoxide was historically also known as "hyperoxide".
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Formulae O2
O2
Net Charge -1
Average Mass 31.999
Monoisotopic Mass 31.98983
InChI InChI=1S/HO2/c1-2/h1H/p-1
InChIKey OUUQCZGPVNCOIJ-UHFFFAOYSA-M
SMILES [O][O-]
Metabolite of Species Details
Mus musculus (NCBI:txid10090) Source: BioModels - MODEL1507180067 See: PubMed
Escherichia coli (NCBI:txid562) See: PubMed
Homo sapiens (NCBI:txid9606) See: DOI
Roles Classification
Biological Role(s): Escherichia coli metabolite
Any bacterial metabolite produced during a metabolic reaction in Escherichia coli.
human metabolite
Any mammalian metabolite produced during a metabolic reaction in humans (Homo sapiens).
mouse metabolite
Any mammalian metabolite produced during a metabolic reaction in a mouse (Mus musculus).
View more via ChEBI Ontology
ChEBI Ontology
Outgoing superoxide (CHEBI:18421) has role Escherichia coli metabolite (CHEBI:76971)
superoxide (CHEBI:18421) has role human metabolite (CHEBI:77746)
superoxide (CHEBI:18421) has role mouse metabolite (CHEBI:75771)
superoxide (CHEBI:18421) is a diatomic oxygen (CHEBI:33263)
superoxide (CHEBI:18421) is a inorganic radical anion (CHEBI:36876)
superoxide (CHEBI:18421) is a oxygen radical (CHEBI:61073)
superoxide (CHEBI:18421) is a reactive oxygen species (CHEBI:26523)
IUPAC Names
dioxidanidyl
dioxide(•1−)
Synonyms Sources
(O2)•− IUPAC
Dioxid(1−) ChEBI
dioxide(1−) IUPAC
hiperóxido ChEBI
Hyperoxid ChEBI
hyperoxide IUPAC
O2•− IUPAC
O2 IUPAC
O2- KEGG COMPOUND
O2.- KEGG COMPOUND
superoxide IUPAC
superoxide UniProt
Superoxide anion KEGG COMPOUND
superoxide anion radical ChemIDplus
superoxide radical ChEBI
superoxide radical anion ChEBI
superóxido ChEBI
superoxyde ChEBI
Manual Xrefs Databases
2FK PDBeChem
4514331 ChemSpider
C00704 KEGG COMPOUND
FDB022880 FooDB
HMDB0002168 HMDB
SUPER-OXIDE MetaCyc
Superoxide Wikipedia
View more database links
Registry Numbers Types Sources
11062-77-4 CAS Registry Number ChemIDplus
11062-77-4 CAS Registry Number NIST Chemistry WebBook
487 Gmelin Registry Number Gmelin
Citations
Last Modified
29 March 2022
General Comment
2022-03-29 Depending on the way the structure is drawn, alternative InChi keys for the structure exists: MXDZWXWHPVATGF-UHFFFAOYSA-N