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Schisandrin A
Deoxyschizandrin
【Structural formula】
[Molecular formula and molecular weight] C 24 H 32 O 6 ; 416.
[Source] The seeds of Schisandrin Chinensis Bail, a magnolia family plant
【Properties】White powder
Soluble in methanol and ethanol
Melting point: 116~117℃
【Purity Check】
TLC
1.
Eluent petroleum ether (60 ~ 90 ℃) - ethyl - formic acid (15 = 5: 1)
Inspection under UV light (254nm)
2.
Developing agent toluene- ethyl acetate (9:1)
Inspection under UV light (254nm)
High performance liquid chromatography
Chromatographic column Agilent-C 18 , 5um (4.
Mobile phase acetonitrile-water (65:35), 1ml/min
Detection wavelength 254nm
【Structural identification】287,251,213
3000, 1600, 1490, 1400, 1100
EI-MS m/z: 416[M] + , 401[M—CH 3 ] + , 385[M—OCH 3 ] + , 345, 314[345—OCH 3 ] + , 370[M—OCH 3 —CH 3 ] + , 360, 330, 271, 181
1 H-NMR (CDCl 3 ) δ: 0.
13 C-NMR (CDCl 3 ) δ: 151.
【Storage】Dry, airtight and avoid light