苯丙酸(英语:Phenylpropanoic acid或 hydrocinnamic acid)是一种分子式为C9H10O2的带芳香基团的羧酸,属于苯丙素类,是一种白色晶体,带有甜味,常温下有花香,在化妆品、食品和制药上有广泛应用。[5]

Quick Facts 苯丙酸, 识别 ...
苯丙酸
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IUPAC名
3-Phenylpropanoic acid
别名 Phenylpropionic acid, Benzenepropanoic Acid, β-Phenylpropionic Acid, Benzylacetic Acid, Dihydrocinnamic Acid, β-Phenylpropanoic Acid[1]
识别
CAS号 501-52-0
PubChem 107
ChemSpider 10181339
SMILES
 
  • OC(=O)CCc1ccccc1
ChEBI 28631
性质
化学式 C9H10O2
摩尔质量 150.177 g/mol[2] g·mol⁻¹
外观 White crystalline solid; faint, sweet, somewhat balsmaic and coumarian-like odor[3]
密度 1.126 g/cm3
熔点 47-50 °C(320-323 K)
沸点 280 °C(553 K)
溶解性 5.9 g/L
log P 1.839[3]
pKa 4.66 (H2O)[4]
相关物质
相关化学品 苯甲酸苯乙酸肉桂酸
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。
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