Previtamin D3

Previtamin D3
Identifiers
CAS number	1173-13-3
PubChem	5281058
MeSH	previtamin+D(3)
Properties
Molecular formula	C27H44O
Molar mass	384.638
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Previtamin D₃ is an intermediate in the production of vitamin D.^[1][2][3][4]

References

1. ^ MacLaughlin JA, Anderson RR, Holick MF (May 1982). "Spectral character of sunlight modulates photosynthesis of previtamin D3 and its photoisomers in human skin". Science (journal) 216 (4549): 1001–3. PMID 6281884. http://www.sciencemag.org/cgi/pmidlookup?view=long&pmid=6281884. 
2. ^ Webb AR (September 2006). "Who, what, where and when-influences on cutaneous vitamin D synthesis". Prog. Biophys. Mol. Biol. 92 (1): 17–25. doi:10.1016/j.pbiomolbio.2006.02.004. PMID 16766240. http://linkinghub.elsevier.com/retrieve/pii/S0079-6107(06)00020-4. 
3. ^ Pope SJ, Holick MF, Mackin S, Godar DE (2008). "Action spectrum conversion factors that change erythemally weighted to previtamin D3-weighted UV doses". Photochem. Photobiol. 84 (5): 1277–83. doi:10.1111/j.1751-1097.2008.00373.x. PMID 18513232. http://www3.interscience.wiley.com/resolve/openurl?genre=article&sid=nlm:pubmed&issn=0031-8655&date=2008&volume=84&issue=5&spage=1277. 
4. ^ Sayre RM, Dowdy JC (2007). "Darkness at noon: sunscreens and vitamin D3". Photochem. Photobiol. 83 (2): 459–63. doi:10.1562/2006-06-29-RC-956. PMID 17115796. http://www3.interscience.wiley.com/resolve/openurl?genre=article&sid=nlm:pubmed&issn=0031-8655&date=2007&volume=83&issue=2&spage=459. 

v • d • e Vitamins (A11) Fat soluble A Retinol · β-Carotene · Tretinoin · α-Carotene D D2 (Ergosterol, Ergocalciferol)  · D3 (7-Dehydrocholesterol, Previtamin D3, Cholecalciferol, 25-hydroxycholecalciferol, Calcitriol (1,25-dihydroxycholecalciferol), Calcitroic acid) D4 (Dihydroergocalciferol)  · D5  · D analogues (Dihydrotachysterol, Calcipotriol, Tacalcitol, Paricalcitol) E Tocopherol (Alpha, Beta, Gamma, Delta) · Tocotrienol · Tocofersolan K Naphthoquinone · Phylloquinone/K1 · Menatetrenone/K2 · Menadione/K3 Water soluble B B1 (Thiamine) · B2 (Riboflavin) · B3 (Niacin, Nicotinamide) · B5 (Pantothenic acid, Dexpanthenol, Pantethine) · B6 (Pyridoxine, Pyridoxal phosphate, Pyridoxamine) B7 (Biotin) · B9 (Folic acid, Dihydrofolic acid, Folinic acid) · B12 (Cyanocobalamin, Hydroxocobalamin, Methylcobalamin, Cobamamide)  · Choline C Ascorbic acid  · Dehydroascorbic acid see also: enzyme cofactors, enzymes

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