GlcNAca/b1-3Xyla-4Galb1-3GalNAca1-4(NeuAc?1-2NeuGc4Mea1-3)GalNAcb1-4(EtnP-6)GlcNAcb1-3Manb1-4Glcb1-1Cer
|
|
Structural Information
|
|
13-Hydroxy-9,10-Dimethoxy-11-Octadecenoic Acid
|
|
|
|
|
Formula
|
C20H38O5
|
Exact Mass
|
358.271924326
|
Average Mass
|
358.51272
|
SMILES
|
C(CCC(O)C=CC(C(OC)CCCCCCCC(O)=O)OC)CC
|
Physicochemical Information
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Spectral Information
|
Mass Spectra
|
GC-EI-MS(after methanolysis and trimethylsilylation)
Gardner et al.: m/e=201[CHOCH3(CH2)7COOCH3](standard peak), 243[M-201] 173[SMTO=CH(CH2)4CH3]
|
UV Spectra
|
|
IR Spectra
|
Methyl ester(CS2)
Gardner et al.: trans olefin(973-970cm-1), OH(3600 and 3440cm-1)
|
NMR Spectra
|
1H-NMR(methyl ester; CDCl3, 300MHz)
Gardner et al.: C9(3.15-3.19ppm), C10(3.58-3.62ppm), C11(5.55-5.58ppm), C12(5.71ppm), C13(4.15ppm), C9OCH3(3.27-3.29ppm), C10OCH3(3.40-3.41ppm), J11-12=15.7Hz(trans unsaturation)
|
Other Spectra
|
|
Chromatograms
|
|