Physalis bitterness L

Physalis bitterness L

Physalin L

【Structural formula】

[Molecular formula and molecular weight] C ₂₈ H ₃₂ O ₁₀ ; 528.

[Source] Solanaceae plant Physalis alkekengi L.

【Properties】White powder

This product is easily soluble in methanol and almost insoluble in ether

Melting point: 248～249℃

【Purity Check】

TLC

1.

Developing solvent of chloroform - acetone - methanol (25:1: 1)

Check the 5% sulfuric acid ethanol solution and heat it at 105°C to be clear

2.

Check the 5% sulfuric acid ethanol solution and heat it at 105°C to be clear

High performance liquid chromatography

Chromatographic column Agilent C ₁₈ , 5um (4.

Mobile phase acetonitrile-water (45:55), flow rate 1ml/min

Detection wavelength 227nm

Differential calorimetry

Start temperature 50℃, end temperature 300℃, heating rate 5℃/min

【Structural identification】233

3450, 1770, 1740, 1720

ESI-MS m/z: 529 [M+H]+, 551 [M+Na]+

¹ H-NMR (DMSO) δ: 1.

¹³ C-NMR (DMSO) δ: 209.

【Storage】Dry and airtight

Related Links: Alderone