has functional parent is conjugate acid of monocarboxylic acid butyric acid alpha-aminobutyric acid 103.063 103.11980 2-amino-n-butyric acid 2-aminobutanoic acid 2-aminobutyric acid AABA Abu An alpha-amino acid that is butyric acid bearing a single amino substituent located at position 2. Beilstein:635889 C4H9NO2 CAS:2835-81-6 CCC(N)C(O)=O CHEBI:35621 DrugBank:DB04454 Gmelin:217679 InChI=1S/C4H9NO2/c1-2-3(5)4(6)7/h3H,2,5H2,1H3,(H,6,7) MetaCyc:CPD-3686 PMID:11958629 PMID:15246869 PMID:20551690 PMID:22061039 PMID:22264337 PMID:22770225 QWCKQJZIFLGMSD-UHFFFAOYSA-N Reaxys:635889 Wikipedia:Alpha-Aminobutyric_acid alpha-amino-n-butyric acid alpha-aminobutyric acid butyrine chebi_ontology homoalanine non-proteinogenic alpha-amino acid alpha-aminobutyrate