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Astragaloside

 Last Update: 2022-04-08
 Source: Internet
 Author: User

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phase 100

10 3 ground

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Astragaloside

Engeletin

【Structural formula】

[Molecular formula and molecular weight] C ₂₁ H ₂₂ O ₁₀ ; 434.

[Source] The dry rhizome of Smilax china L.

【Properties】Light yellow powder

This product is easily soluble in methanol and ethanol , and slightly soluble in water

Melting point: 170～172℃

【Purity Check】

TLC

Developing solvent chloroform - methanol - formic acid (5:1: 0.

Check under UV lamp (254nm)

Developing solvent ethyl acetate - formic acid (10:0.

Check under UV lamp (254nm)

High performance liquid chromatography

Chromatographic column Agilent Eclipse XDB C ₁₈ , 5um (4.

Mobile phase acetonitrile - water (30:70), 1ml / min

Detection wavelength 290nm

[Structural identification] 203, 220, 292

3351 (-OH), 1643 (C=O), 1596, 1519 (aromatic ring), 1470, 1291, 1169, 1083, 976, 829

ESI-MS m/z: 433[MH] ^-

¹ H-NMR (DMSO) δ: 5.

¹³ C-NMR (DMSO) δ: 194.

【Storage】Dry and airtight
.

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Astragaloside IV

06-07

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Astragaloside

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