Ginsenoside Rf

Ginsenoside Rf

Ginsenoside Rf

【Structural formula】

[Molecular formula and molecular weight] C ₄₂ H ₇₂ O ₁₄ ; 800

[Source] The dried roots of Panax ginseng CAMeyer, a plant of the Araliaceae family

【Properties】White powder

This product is easily soluble in methanol and ethanol

Melting point: 197～198℃

Optical rotation: [α] _D ²⁰ +6.

【Purity Check】

TLC

1.

Developing solvent chloroform - ethyl acetate - methanol - aqueous layer liquid specimen 10% or less identification (15:40:22:10) 10 ℃ placed sulfuric acid in ethanol solution, heated to 105 ℃ spot color is clear, UV light and sunlight (365nm) view down

2.

Developing agent chloroform-methanol-water (65:35:10) lower layer liquid placed below 10℃

Inspection of 10% sulfuric acid ethanol solution, heated at 105°C until the spots are clearly colored, inspected under sunlight and ultraviolet light (365nm)

High performance liquid chromatography

Chromatographic column Agilent SB C ₁₈ , 10um (4.

Mobile phase acetonitrile-water (22:78), 1ml/min

Detection wavelength 203nm

【Structural identification】202

3380(-OH), 1620(C=C)

ESI-MS m/z: 799[MH] ^-

¹ H-NMR (C ₅ D ₅ N) δ: 5.

¹³ C-NMR (C ₅ D ₅ N) δ: 39.

【Storage】Dry and airtight

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