α-Aminobutyric acid (AABA), also known as homoalanine in biochemistry, is a non-proteinogenic alpha amino acid with chemical formula C4H9NO2. The straight two carbon side chain is one carbon longer than alanine, hence the prefix homo-.

CAS：2835-81-6
中文别名：DL-Α-氨基正丁酸;DL-氨基丁酸;2-氨基丁酸;消旋-2-氨基丁酸;
英文别名：2-amino-n-butyric acid;DL-Butyrine;homoalanine;2-aminobutanoic acid;DL-Butyrine-d3;Butanoic acid, 2-amino-, (±)-;DL-.α.-Amino-n-butyric acid (.β.-form);2-aminobutyric acid;DL-2-Aminobutyric Acid;DL-Ethylglycine;2-aminobutanoic;alpha-aminobutyric acid;H-DL-ABU-OH;DL-AABA;DL-2-aminobutanoic acid;2-Aminobutyric Acid;
分子式：C4H9NO2
分子量：103.12
精确质量：103.063
Psa：63.32
Logp：0.5086

MDL号：MFCD00008093
EINECS号：220-616-5

外观与性状：灰白色固体
密度：1.105 g/cm3
沸点：215.2ºC at 760 mmHg
熔点：291-293ºC (dec.)
闪点：83.9ºC
折射率：1.438
稳定性：Stable under normal temperatures and pressures.
储存条件：Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
蒸汽压：0.135mmHg at 25°C

安全说明：S22-S24/25
危险类别码：R20/21/22
WGK Germany：3
海关编码：29224995
危险品标志：Xn

用途
用于保健品和运动饮料中及医药中间体。