Kynurenic acid (KYNA or KYN) is a product of the normal metabolism of amino acid L-tryptophan. It has been shown that kynurenic acid possesses neuroactive activity. It acts as an antiexcitotoxic and anticonvulsant, most likely through acting as an antagonist at excitatory amino acid receptors. Because of this activity, it may influence important neurophysiological and neuropathological processes. As a result, kynurenic acid has been considered for use in therapy in certain neurobiological disorders. Conversely, increased levels of kynurenic acid have also been linked to certain pathological conditions.

CAS：492-27-3
中文别名：犬尿喹啉酸;4-羟基喹啉-2-甲酸;4-羟基-2-喹啉甲酸;4-羟基喹啉-2-羧酸;
英文别名：4-Hydroxyquinaldic Acid;4-Hydroxy-2-quinolincarboxylic acid;2-Quinolinecarboxylic acid, 4-hydroxy-;4-Hydroxyquinoline-2-carboxylic Acid Hydrate;KYNURENIC ACID;Kynurenic acid;
分子式：C10H7NO3
分子量：189.167
精确质量：189.043
Psa：70.42
Logp：1.6386

EINECS号：207-751-5

外观与性状：灰白色至黄褐色的粉末
密度：1.429 g/cm3
沸点：358.4ºC at 760 mmHg
熔点：275°C (dec.)(lit.)
闪点：170.5ºC
储存条件：Store at RT
蒸汽压：1.31E-11mmHg at 25°C

RTECS号：UZ9300000
安全说明：S26; S36/37/39
危险类别码：R36/37/38
WGK Germany：3
危险品标志：Xi