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Methyl ricinoleate
Ricinic acid methyl ester
[Synonym] 12-hydroxy-9-octadecenoic acid methyl ester
【Structural formula】
[Molecular formula and molecular weight] C 19 H 36 O 3 ; 312.
[Source] Dry mature seeds of Ricinus communis L.
【Properties】Light yellow oily liquid
This product is soluble in n-hexane and ether , slightly soluble in ethanol , but insoluble in water
Melting point: -29°C
【Purity Check】
TLC
1.
Eluent petroleum ether (60 ~ 90 ℃) - ethyl acetate - formic acid (14:4: 0.
Inspection of 5% vanillin sulfuric acid heated at 105°C, inspected under sunlight
2.
Developing solvent cyclohexane - ethyl acetate - formic acid (10:1:0.
Check 5% vanillin sulfuric acid heated at 105℃, check gas chromatography under sunlight
Chromatographic column ZB-WAX capillary column, 0.
Column temperature 250℃
Detect FID detector
Differential calorimetry
Start temperature 50℃, end temperature 300℃, heating rate 5℃/min
【Structural identification】202
3620, 3002, 2923, 2852, 1740, 1433, 1168
ESI-MS m/z: 335[M+Na] +
1 H-NMR (CDCl 3 ) δ: 5.
13 C-NMR (CDCl 3 ) δ: 174.
【Storage】Dry and airtight
Related link: Isorhynchophylline