2-Aminoisobutyric acid

2-Aminoisobutyric acid
Names
	Preferred IUPAC name 2-Amino-2-methylpropanoic acid
	Other names α-Aminoisobutyric acid; 2-Methylalanine; α-methylalanine
Identifiers
CAS Number	62-57-7 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:27971 ;
ChemSpider	5891 ;
DrugBank	DB02952 ;
ECHA InfoCard	100.000.495
EC Number	200-544-0;
KEGG	C03665 ;
PubChem CID	6119;
UNII	1E7ZW41IQU ;
CompTox Dashboard (EPA)	DTXSID0058772 ;
	InChI InChI=1S/C4H9NO2/c1-4(2,5)3(6)7/h5H2,1-2H3,(H,6,7) Key: FUOOLUPWFVMBKG-UHFFFAOYSA-N ; InChI=1/C4H9NO2/c1-4(2,5)3(6)7/h5H2,1-2H3,(H,6,7) Key: FUOOLUPWFVMBKG-UHFFFAOYAD;
	SMILES O=C(O)C(N)(C)C;
Properties
Chemical formula	C4H9NO2
Molar mass	103.12 g/mol
Appearance	white crystalline powder
Density	1.09 g/mL
Boiling point	204.4 °C (399.9 °F; 477.5 K)
Solubility in water	soluble
Acidity (pKa)	2.36 (carboxyl; H2O); 10.21 (amino; H2O);
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

2-Aminoisobutyric acid (Aib) is the non-proteinogenic amino acid with the structural formula H₂N-C(CH₃)₂-COOH. The Aib residue is a component of tirzepatide, a commonly prescribed antidiabetic medication for treatment of type 2 diabetes. Although uncommon, it is also found in some natural products