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Cinnamic acid
Cinnamic acid
[Synonyms] cinnamic acid, trans-Cirnamic acid
【Structural formula】
[Molecular formula and molecular weight] C 9 H 8 O 2 ; 148.
[Source] The dry bark of Lauraceae Cinnamomum cassia Presl
【Properties】White powder
This product is soluble in methanol
Melting point: 132~133℃
【Purity Check】
TLC
1.
Developing solvent hexane - ether - acetic acid (5: 5: 0.
Check under UV lamp (254nm)
2.
Eluent petroleum ether - cyclohexane - ethyl - carboxylic acid (10:30:15:1)
Check under UV lamp (254nm)
High performance liquid chromatography
Chromatographic column AgilentC 18 , 5um (4.
The mobile phase methanol -0.
Detection wavelength 285nm
【Structural identification】273,216,205
2596, 1684, 1631, 1450, 1344, 1288, 1227, 933, 766
EI-MS m/z: 148[M] + , 131, 103, 91, 77, 51
1 H-NMR (CD 3 OD) δ: 6.
13 C-NMR (CD 3 OD) δ: 170.
【Storage】Dry and airtight
.
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