Synephrine

Synephrine

Synephrine

【Structural formula】

【Molecular formula and molecular weight】C ₉ H ₁₃ NO ₂ ;167.

[Source] Rutaceae plant Citrus aurantium L.

【Properties】White powder

This product is easily soluble in methanol and ethanol

Melting point: 165～166℃

【Purity Check】

TLC

1.

Developing agent methanol- acetone -chloroform-concentrated ammonia (3:3:3:1)

After checking the color of ninhydrin ethanol solution, checking under sunlight

2.

Developing solvent n-butanol 36% acetic acid - water (5:1:2)

After checking the color of ninhydrin ethanol solution, checking under sunlight

High performance liquid chromatography

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

Mobile phase methanol-potassium dihydrogen phosphate solution (take 0.

Detection wavelength 275nm

[Structural identification] 288,248

3286(N—H), 2983(C—H), 2877(C—H), 1610(-Ar), 1508(-Ar), 1336, 1265(C—O), 1205(C—O), 1097 , 1053, 835

ESI-MS m/z: 168[M+H] ⁺ , 190[M+Na]+[1.

¹ H-NMR (DMSO) δ: 4.

¹³ C-NMR (DMSO) δ: 71.

【Storage】Dry and airtight

Related link: Tetrahydropalmatine