CHEBI:25567 - nitrous acid

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ChEBI Name nitrous acid
ChEBI ID CHEBI:25567
Stars This entity has been manually annotated by the ChEBI Team.
Supplier Information ChemicalBook:CB2185552, ZINC000008215481
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Formula HNO2
Net Charge 0
Average Mass 47.01348
Monoisotopic Mass 47.00073
InChI InChI=1S/HNO2/c2-1-3/h(H,2,3)
InChIKey IOVCWXUNBOPUCH-UHFFFAOYSA-N
SMILES [H]ON=O
Roles Classification
Chemical Role(s): inorganic acid
A Bronsted acid derived from one or more inorganic compounds. Inorganic acids (also known as mineral acids) form hydrons and conjugate base ions when dissolved in water.
(via pnictogen oxoacid )
Bronsted acid
A molecular entity capable of donating a hydron to an acceptor (Bronsted base).
(via oxoacid )
View more via ChEBI Ontology
ChEBI Ontology
Outgoing nitrous acid (CHEBI:25567) is a nitrogen oxoacid (CHEBI:33455)
nitrous acid (CHEBI:25567) is conjugate acid of nitrite (CHEBI:16301)
Incoming nitrites (CHEBI:25549) has functional parent nitrous acid (CHEBI:25567)
hyponitrite (CHEBI:24758) is a nitrous acid (CHEBI:25567)
nitrite (CHEBI:16301) is conjugate base of nitrous acid (CHEBI:25567)
nitrosooxy group (CHEBI:29786) is substituent group from nitrous acid (CHEBI:25567)
IUPAC Names
dioxonitric acid
hydrogen dioxonitrate(1−)
hydroxidooxidonitrogen
nitrous acid
Synonyms Sources
[NO(OH)] IUPAC
HNO2 IUPAC
nitrosyl hydroxide NIST Chemistry WebBook
Manual Xrefs Databases
C00088 KEGG COMPOUND
NO2 PDBeChem
View more database links
Registry Numbers Types Sources
7782-77-6 CAS Registry Number ChemIDplus
7782-77-6 CAS Registry Number NIST Chemistry WebBook
983 Gmelin Registry Number Gmelin
Last Modified
28 July 2014