GlcNAca/b1-3Xyla-4Galb1-3GalNAca1-4(NeuAc?1-2NeuGc4Mea1-3)GalNAcb1-4(EtnP-6)GlcNAcb1-3Manb1-4Glcb1-1Cer
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Structural Information
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13-Hydroxy-10-Oxo-11-Octadecenoic Acid
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Formula
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C18H32O4
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Exact Mass
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312.23005951199997
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Average Mass
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312.44428
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SMILES
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CCCCCC(O)C=CC(=O)CCCCCCCCC(O)=O
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Physicochemical Information
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Spectral Information
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Mass Spectra
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GC-EI-MS(after methanolysis and hydrogenation)
Gardner_WH : m/e=328[M], 257[M-(CH2)4CH3], 225[257-CH3OH], 199[CO(CH2)8COOCH3], 167[199-CH3OH](standard peak), 157[(CH2)7COOCH3 or CH3(CH2)4CH(OH)-(CH2)2CO]
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UV Spectra
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l EtOH /max=226nm(e=9900Å }1100), l EtOH /max=275nm(e260Å }30)
Gardner_WH
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IR Spectra
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Trans unsaturation(973cm-1), conjugated C=O(1617cm-1), OH(3460,1070cm-1)
Gardner_WH
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NMR Spectra
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1H-NMR
Gardner_WH : C9(2.56ppm), C11(6.28ppm), C12(6.80ppm), C13(4.29ppm)
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Other Spectra
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Chromatograms
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