Methyl ricinoleate

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