Compound
2-methylpropanoate
A branched, short-chain, saturated fatty acid anion; the conjugate base of isobutyric acid, formed by deprotonation of the carboxylic acid group.
Definition from ChEBI (CHEBI:48944), read 2026-09-23. CC BY 4.0.
Structure
Loading the model…
- Class
- Organic compound, anion
- Formula
- C4H7O2
- Mass
- 87.098 g/mol
- Charge
- -1
- InChIKey
- KQNPFQTWMSNSAP-UHFFFAOYSA-M
- SMILES
- CC(C)C(=O)[O-]
- Look it up
- ChEBIPubChemBy InChIKey
Identity from ChEBI, geometry from PubChem. Not evidence.
What the reference databases state
Chemical structure
- 2-methylpropanoate has the functional parent propanoateCompoundChEBI CHEBI:48944Inferred only
Reactions
7 reactions
2-methylpropanoate+ATP(4-)CHEBI:58131+ADP(3-)
Reaction pageDirection not assertedBalance undeterminable
Rhea RHEA:24156CC BY 4.0Reference data
2-methylpropanoyl-CoA+water2-methylpropanoate+coenzyme A(4-)+hydron
Reaction pageLeft to rightBalance undeterminable
Rhea RHEA:40799CC BY 4.0Reference data
CHEBI:79380+waterCHEBI:11641+2-methylpropanoate+hydron
Reaction pageDirection not assertedBalance undeterminable
Rhea RHEA:42576CC BY 4.0Reference data
2-methylpropanoate+ATP(4-)+coenzyme A(4-)2-methylpropanoyl-CoA+AMP+diphosphate(3-)
Catalysed by ACSM3
Reaction pageLeft to rightBalance undeterminable
Rhea RHEA:46176CC BY 4.0Reference data
CHEBI:231480+reduced [NADPH--hemoprotein reductase]+dioxygenCHEBI:231481+2-methylpropanoate+oxidized [NADPH--hemoprotein reductase]+water+2hydron
Reaction pageDirection not assertedBalance undeterminable
Rhea RHEA:80347CC BY 4.0Reference data
CHEBI:231471+reduced [NADPH--hemoprotein reductase]+dioxygenCHEBI:231473+2-methylpropanoate+oxidized [NADPH--hemoprotein reductase]+water+2hydron
Reaction pageDirection not assertedBalance undeterminable
Rhea RHEA:80351CC BY 4.0Reference data
N(6)-isobutanoyl-L-lysyl-[protein]+water2-methylpropanoate+L-lysyl-[protein]
Reaction pageDirection not assertedBalance undeterminable
Rhea RHEA:85283CC BY 4.0Reference data
Other names
8 names
Resolves to: 2-methylpropanoate
- Also called
- 2-methylpropanoic acid, ion(1-)2-methylpropanoic acid, ion(1−)2-methylpropionatei-butyrateiPrCO2 anionisobutanoateisobutyric acid anionmethylpropanoate