去甲氧基薑黃素(英語:Desmethoxycurcumin)是一種有機化合物,分子式C20H18O5,屬於一種薑黃色素薑黃素衍生物),存在於薑黃(學名:Curcuma longa)中[1],在商用的薑黃色素中佔比約10–20%,雙去甲氧基薑黃素佔比不到5%[2]

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去甲氧基薑黃素
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IUPAC名
(1E,6E)-1-(4-Hydroxy-3-methoxyphenyl)-7-(4-hydroxyphenyl)hepta-1,6-diene-3,5-dione
別名 Curcumin II; Desmethoxycurcumin; Monodemethoxycurcumin
識別
CAS號 22608-11-3  checkY
PubChem 5469424
ChemSpider 39463964
SMILES
 
  • COc(c1)c(O)ccc(C=CC(=O)CC(=O)C=Cc(c2)ccc(O)c2)1
InChI
 
  • InChI=1S/C20H18O5/c1-25-20-12-15(6-11-19(20)24)5-10-18(23)13-17(22)9-4-14-2-7-16(21)8-3-14/h2-12,21,24H,13H2,1H3/b9-4+,10-5+
InChIKey HJTVQHVGMGKONQ-LUZURFALSA-N
性質
化學式 C20H18O5
摩爾質量 338.35 g·mol−1
若非註明,所有數據均出自標準狀態(25 ℃,100 kPa)下。
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