β-Aminobutyric acid (BABA) is an isomer of the amino acid aminobutyric acid with the chemical formula C4H9NO2. It has two isomers, alpha-aminobutyric acid and gamma-aminobutyric acid (GABA), a neurotransmitter in animals that is also found in plants, where it may play a role in signalling. All three are non-proteinogenic amino acids, not being found in proteins. BABA is known for its ability to induce plant disease resistance, as well as increased resistance to abiotic stresses, when applied to plants.

CAS：541-48-0
中文别名：(±)-3-氨基丁酸;DL-3-氨基丁酸;β-氨基丁酸;3-氨基丁酸;
英文别名：DL-3-AMINOBUTYRIC ACID;DL-3-AMinobutyric Acid;3-Aminobutanoic Acid;3-Aminobutanoic acid;
分子式：C4H9NO2
分子量：103.12
精确质量：103.063
Psa：63.32
Logp：0.5086

EINECS号：208-783-2

外观与性状：白色粉末
密度：1.105 g/cm3
沸点：223.6ºC at 760 mmHg
熔点：189°C (dec.)(lit.)
闪点：89ºC

RTECS号：EK7713333
安全说明：S26
危险类别码：R36/37/38
WGK Germany：3
危险品标志：Xi
危险性防范说明：P261; P305 + P351 + P338
危险标志：GHS07
信号词：Warning
危险性描述：H315; H319; H335