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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12,13-Epoxy-11-Methoxy-9-Octadecenoic Acid
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Formula
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C19H34O4
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Exact Mass
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326.24570957599997
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Average Mass
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326.47086
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SMILES
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C(C(O1)C1CCCCC)(OC)C=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(methyl ester)<<8070>>: m/e=309[M-OCH3], 240[M-CH3(CH2)4CHO], 227[CH3OCH-CH=CH(CH2)7COOCH3], 209[240-OCH3], 195[227-CH3OH]
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UV Spectra
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IR Spectra
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Methyl ester: cis olefin(758-740cm-1), trans epoxide(900 AND 890cm-1), cis epoxide(852 and 842cm-1) <<8070>>
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NMR Spectra
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1H-NMR: C8(2.08ppm), C9(5.69-5.74ppm), C10(5.28-5.32ppm), C11(3.76-4.03ppm), C12(2.74-2.98ppm), C13(2.74-2.92ppm), J9-10=11.7-11.9Hz(cis unsaturation) <<8070>>
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Other Spectra
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Chromatograms
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