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Qiao Song Su
Pinocembrin
【Structural formula】
[Molecular formula and molecular weight] C 15 H 12 O 4 ; 256.
[Source] Alpinia katsumadai Hayata, a plant of the ginger family, has dried mature seeds
【Properties】Light yellow powder
This product is soluble in methanol
Melting point: 210~212℃
【Purity Check】
TLC
1.
Eluent petroleum ether (60 ~ 90 ℃) - acetone (4:1)
Check under UV lamp (254nm)
2.
Developing agent: cyclohexane - acetone (4:1)
Check under UV lamp (254nm)
High performance liquid chromatography
Chromatographic column Agilent C 18 , 5um (4.
Mobile phase methanol-water (50:50), 1.
Detection 300nm
【Structural identification】289
3090, 3012, 1630, 1603, 1488, 1466, 1302, 1168
ESI-MS m/z: 257[M+H] +
1 H-NMR (CD 3 OD) δ: 2.
13 C-NMR (CD 3 OD) δ: 80.
【Storage】Dry and airtight
Related link: Geniposide