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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2007-07-11 15:42:27 UTC
Update Date2022-03-07 02:49:32 UTC
HMDB IDHMDB0006722
Secondary Accession Numbers
  • HMDB06722
Metabolite Identification
Common Name25-Hydroxytachysterol3
Description25-Hydroxytachysterol3 is a hydroxylated derivative of tachysterol3. 25-hydroxytachysterol is converted to 25-hydroxyprevitamin D3, which is then converted to the hydroxyvitamin D3 through a thermally induced rearrangement. It is now established that, during exposure to sunlight, the cutaneous reservoir of 7-dehydrocholesterol converts to previtamin D3. Once this thermally labile previtamin is formed, it undergoes a temperature-dependent isomerization to vitamin D3 over a period of 3 days. The plasma vitamin-D binding protein preferentially translocates vitamin D3 from the skin into the circulation. During prolonged exposure to the sun, the accumulation of previtamin D3 is limited to about 10 to 15% of the original 7-dehydrocholesterol content because the previtamin photoisomerizes to 2 biologically inert photoproducts, lumisterol3 and tachysterol3. (PMID 12617640 ). 25-Hydroxytachysterol3 is characterized by antirachitic activity and by its ability to elevate serum calcium concentration in conditions of hypoparathyroidism. 25-Hydroxytachysterol3 can be used in the preparation of 25-hydroxydihydrotachysterol 3 (25-OH-DHT3) is considered an effective adjunct in the treatment of hypoparathyroidism, particularly where rapid action in elevating serum calcium concentration is being sought. (25-OH-DHT3) exhibits substantially greater antirachitic activity than DHT 3.
Structure
Data?1582752402
Synonyms
ValueSource
25-HydroxytachysterolHMDB
9,10-Secocholesta-5(10),6,8-triene-3,25-diolHMDB
Chemical FormulaC27H44O2
Average Molecular Weight400.6371
Monoisotopic Molecular Weight400.334130652
IUPAC Name2-[(E)-2-[(1R,7aR)-1-[(2R)-6-hydroxy-6-methylheptan-2-yl]-7a-methyl-2,3,3a,6,7,7a-hexahydro-1H-inden-4-yl]ethenyl]-3-methylcyclohex-2-en-1-ol
Traditional Name2-[(E)-2-[(1R,7aR)-1-[(2R)-6-hydroxy-6-methylheptan-2-yl]-7a-methyl-1,2,3,3a,6,7-hexahydroinden-4-yl]ethenyl]-3-methylcyclohex-2-en-1-ol
CAS Registry Number39932-44-0
SMILES
C[C@H](CCCC(C)(C)O)[C@H]1CCC2([H])C(=CCC[C@]12C)\C=C\C1=C(C)CCCC1O
InChI Identifier
InChI=1S/C27H44O2/c1-19-9-6-12-25(28)22(19)14-13-21-11-8-18-27(5)23(15-16-24(21)27)20(2)10-7-17-26(3,4)29/h11,13-14,20,23-25,28-29H,6-10,12,15-18H2,1-5H3/b14-13+/t20-,23-,24?,25?,27-/m1/s1
InChI KeyREBCKWLPJGCBRY-GYDNJJFKSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as vitamin d and derivatives. Vitamin D and derivatives are compounds containing a secosteroid backbone, usually secoergostane or secocholestane.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassSteroids and steroid derivatives
Sub ClassVitamin D and derivatives
Direct ParentVitamin D and derivatives
Alternative Parents
Substituents
  • Triterpenoid
  • Tertiary alcohol
  • Secondary alcohol
  • Organic oxygen compound
  • Hydrocarbon derivative
  • Organooxygen compound
  • Alcohol
  • Aliphatic homopolycyclic compound
Molecular FrameworkAliphatic homopolycyclic compounds
External DescriptorsNot Available
Ontology
Physiological effectNot Available
Disposition
Process
Role
Physical Properties
StateSolid
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
Predicted Chromatographic Properties
Spectra
Biological Properties
Cellular Locations
  • Extracellular
  • Membrane
Biospecimen LocationsNot Available
Tissue LocationsNot Available
Pathways
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB024040
KNApSAcK IDNot Available
Chemspider ID35016023
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound53477886
PDB IDNot Available
ChEBI IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceDe Luca, Hector F.; Suda, Tatsuo. Photochemically preparing 25-hydroxytachysterol3. U.S. (1972), 3 pp. CODEN: USXXAM US 3702810 19721114 CAN 78:72458 AN 1973:72458
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Saltiel J, Cires L, Turek AM: Conformer-specific photoconversion of 25-hydroxytachysterol to 25-hydroxyprevitamin D3: role in the production of vitamin Ds. J Am Chem Soc. 2003 Mar 12;125(10):2866-7. [PubMed:12617640 ]