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丙硫醛-S-氧化物

丙硫醛-S-氧化物
IUPAC名
1-Sulfinylpropane
英文名 Syn-propanethial-S-oxide
别名 硫代丙醛-S-氧化物
识别
CAS号 32157-29-2  checkY
PubChem 441491
ChemSpider 390214
SMILES
 
  • O=S=C/CC
InChI
 
  • 1/C3H6OS/c1-2-3-5-4/h3H,2H2,1H3
InChIKey BAZSXBOAXJLRNH-UHFFFAOYAF
性质
化学式 C3H6OS
摩尔质量 90.14 g·mol−1
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

顺式-丙硫醛-S-氧化物(Syn-propanethial-S-oxide)是具有洋葱催泪性质的主要物质。它是一种易挥发的气体,化学式 C3H6OS。

产生过程

在洋葱的植物组织受到破坏时,存在于洋葱中的风味和香味化合物前体S-(1-丙烯基)-L-半胱氨酸亚砜被蒜氨酸酶迅速水解,产生丙烯基次磺酸中间体以及丙酮酸。次磺酸再重排为催泪物丙硫醛-S-氧化物,呈现出洋葱风味。[1]

参见

参考资料

  1. ^ Scott, Thomas. What is the chemical process that causes my eyes to tear when I peel an onion?. Ask the Experts: Chemistry. Scientific American. [2007-04-28]. (原始内容存档于2022-04-22). 
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丙硫醛-S-氧化物
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