Accession NumberHMDB06719
Common_Name5,6-trans-Vitamin D3
Description5,6-trans-vitamin D3 is the result of photodegradation of vitamin D3, and once formed in the skin, exposure to sunlight results in its rapid photodegradation to a variety of photoproducts. During chronic exposure to sunlight vitamin D3 in the skin can be photoisomerized to a variety of photoproducts, including 5,6-trans-vitamin D3. Because 5,6-Trans-vitamin D3 is a photoproduct of vitamin D3 and have a pseudo-1-alpha-hydroxyl structure due to the 180-degree rotation of the 3-hydroxyl group during isomerization. 5,6-trans-vitamin D3 can mimic the intestinal calcium transport activity of 1alpha,25(OH)2D (the active form of vitamine D). (PMID: 10876100, 2541158)
Chemical_IUPAC_Name(1S,3E)-3-[(2E)-2-[(1R,3aS,7aR)-7a-methyl-1-[(2R)-6-methylheptan-2-yl]-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylidenecyclohexan-1-ol
Chemical FormulaC27H44O
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Predicted 1H NMR SpectrumDownload
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Predicted 13C NMR PeaklistDownload
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