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850993

Sigma-Aldrich

2-Aminoisobutyric acid

98%, for peptide synthesis

Synonym(s):

α-Aminoisobutyric acid, 2-Methylalanine, Aib

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About This Item

Linear Formula:
(CH3)2C(NH2)COOH
CAS Number:
62-57-7
Molecular Weight:
103.12
Beilstein/REAXYS Number:
506496
EC Number:
200-544-0
MDL number:
MFCD00008049
UNSPSC Code:
12352106
PubChem Substance ID:
24888304
NACRES:
NA.22

product name

2-Aminoisobutyric acid, 98%

assay

98%

form

solid

reaction suitability

reaction type: solution phase peptide synthesis

mp

≥300 °C

application(s)

peptide synthesis

SMILES string

CC(C)(N)C(O)=O

InChI

1S/C4H9NO2/c1-4(2,5)3(6)7/h5H2,1-2H3,(H,6,7)

InChI key

FUOOLUPWFVMBKG-UHFFFAOYSA-N

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General description

2-Aminoisobutyric acid also known as α-aminobutyric acid, is an amino acid used in solution-phase peptide synthesis. It is a desirable building block for peptides because of its strong tendency to cause the peptide to form a helical shape.

Application

2-Aminoisobutyric acid can be used to synthesize self-assembled polypeptide nanoparticles. Incorporation of this compound into the peptide chain can prevent undesired reactions since it is di-α-substituted, and inert to C−H abstraction.

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H319

Hazard Classifications

Eye Irrit. 2

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Photochemical methods for peptide macrocyclisation
Chemistry?A European Journal , 27, 69-88 (2021)
Amphiphilic polypeptides with prolonged enzymatic stability for the preparation of self-assembled nanobiomaterials
Royal Society of Chemistry Advances, 8, 34603-34613 (2018)
Jamie E Elsila et al.
Astrobiology, 11(2), 123-133 (2011-03-23)
The presence of nonprotein α-dialkyl-amino acids such as α-aminoisobutyric acid (α-AIB) and isovaline (Iva), which are considered to be relatively rare in the terrestrial biosphere, has long been used as an indication of the indigeneity of meteoritic amino acids. However
Marta De Zotti et al.
Amino acids, 43(4), 1761-1777 (2012-04-10)
The lipopeptaibol trichogin GA IV is a natural, non-ribosomally synthesized, antimicrobial peptide remarkably resistant to the action of hydrolytic enzymes. This feature may be connected to the multiple presence in its sequence of the non-coded residue α-aminoisobutyric acid (Aib), which
Evgeniy Salnikov et al.
Journal of biomolecular NMR, 45(4), 373-387 (2009-10-14)
In protein NMR spectroscopy the chemical shift provides important information for the assignment of residues and a first structural evaluation of dihedral angles. Furthermore, angular restraints are obtained from oriented samples by solution and solid-state NMR spectroscopic approaches. Whereas the
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