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Record Information
Version1.0
Creation Date2016-09-30 22:18:43 UTC
Update Date2020-05-21 16:28:43 UTC
BMDB IDBMDB0000032
Secondary Accession Numbers
  • BMDB00032
Metabolite Identification
Common Name7-Dehydrocholesterol
Description7-Dehydrocholesterol, also known as 5,7-cholestadien-3-b-ol or provitamin D3, belongs to the class of organic compounds known as cholesterols and derivatives. Cholesterols and derivatives are compounds containing a 3-hydroxylated cholestane core. Thus, 7-dehydrocholesterol is considered to be a sterol lipid molecule. 7-Dehydrocholesterol is a very hydrophobic molecule, practically insoluble (in water), and relatively neutral. 7-Dehydrocholesterol is a potentially toxic compound.
Structure
Thumb
Synonyms
ValueSource
(3beta)-Cholesta-5,7-dien-3-olChEBI
5,7-Cholestadien-3-beta-olChEBI
5,7-Cholestadien-3beta-olChEBI
Provitamin D3ChEBI
Cholesta-5,7-dien-3beta-olKegg
(3b)-Cholesta-5,7-dien-3-olGenerator
(3Β)-cholesta-5,7-dien-3-olGenerator
5,7-Cholestadien-3-b-olGenerator
5,7-Cholestadien-3-β-olGenerator
5,7-Cholestadien-3b-olGenerator
5,7-Cholestadien-3β-olGenerator
Cholesta-5,7-dien-3b-olGenerator
Cholesta-5,7-dien-3β-olGenerator
(-)-7-DehydrocholesterolHMDB
10,13-Dimethyl-17-(6-methylheptan-2-yl)-2,3,4,9,11,12,14,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-3-olHMDB
17-(1,5-Dimethylhexyl)-10,13-dimethyl-2,3,4,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-olHMDB
5,7-Cholestandien-3-olHMDB
5,7-Cholestandien-3beta-olHMDB
7,8-Dehydro-cholesterolHMDB
7,8-DidehydrocholesterolHMDB
7-Dehydro-cholesterolHMDB
7-DehydrocholesterinHMDB
7DHCHMDB
Cholesta-5,7-dien-3 beta -olHMDB
Cholesta-5,7-dien-3-beta-olHMDB
Cholesta-5,7-dien-3-olHMDB
DehydrocholesterinHMDB
DehydrocholesterolHMDB
Delta5,7-Cholestadien-3beta-olHMDB
Delta5,7-CholesterolHMDB
Delta7-CholesterolHMDB
Provitamin-D3HMDB
Provitamin D(3)HMDB
Cholesta-5,7-dien-3 beta-olHMDB
7-Dehydrocholesterol, (3beta,10alpha)-isomerHMDB
7-Dehydrocholesterol, (3beta,9beta,10alpha)-isomerHMDB
7-DHCHMDB
7-Dehydrocholesterol, (3alpha)-isomerHMDB
7-Dehydrocholesterol, (3beta,9beta)-isomerHMDB
Chemical FormulaC27H44O
Average Molecular Weight384.6377
Monoisotopic Molecular Weight384.33921603
IUPAC Name(1S,2R,5S,11R,14R,15R)-2,15-dimethyl-14-[(2R)-6-methylheptan-2-yl]tetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadeca-7,9-dien-5-ol
Traditional Name(1S,2R,5S,11R,14R,15R)-2,15-dimethyl-14-[(2R)-6-methylheptan-2-yl]tetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadeca-7,9-dien-5-ol
CAS Registry Number434-16-2
SMILES
[H][C@@]1(CC[C@@]2([H])C3=CC=C4C[C@@H](O)CC[C@]4(C)[C@@]3([H])CC[C@]12C)[C@H](C)CCCC(C)C
InChI Identifier
InChI=1S/C27H44O/c1-18(2)7-6-8-19(3)23-11-12-24-22-10-9-20-17-21(28)13-15-26(20,4)25(22)14-16-27(23,24)5/h9-10,18-19,21,23-25,28H,6-8,11-17H2,1-5H3/t19-,21+,23-,24+,25+,26+,27-/m1/s1
InChI KeyUCTLRSWJYQTBFZ-DDPQNLDTSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as cholesterols and derivatives. Cholesterols and derivatives are compounds containing a 3-hydroxylated cholestane core.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassSteroids and steroid derivatives
Sub ClassCholestane steroids
Direct ParentCholesterols and derivatives
Alternative Parents
Substituents
  • Cholesterol
  • Cholesterol-skeleton
  • 3-hydroxy-delta-5-steroid
  • 3-hydroxy-delta-7-steroid
  • 3-beta-hydroxysteroid
  • 3-beta-hydroxy-delta-5-steroid
  • 3-hydroxysteroid
  • Hydroxysteroid
  • Delta-7-steroid
  • Delta-5-steroid
  • Cyclic alcohol
  • Secondary alcohol
  • Alcohol
  • Organic oxygen compound
  • Hydrocarbon derivative
  • Organooxygen compound
  • Aliphatic homopolycyclic compound
Molecular FrameworkAliphatic homopolycyclic compounds
External Descriptors
Ontology
StatusExpected but not Quantified
Origin
  • Endogenous
  • Exogenous
BiofunctionNot Available
ApplicationNot Available
Cellular locations
  • Cell membrane
  • Cytoplasm
  • Endoplasmic reticulum
  • Membrane
Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
logP7.3ALOGPS
logP6.71ChemAxon
logS-6.4ALOGPS
pKa (Strongest Acidic)18.27ChemAxon
pKa (Strongest Basic)-1.4ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area20.23 ŲChemAxon
Rotatable Bond Count5ChemAxon
Refractivity121.47 m³·mol⁻¹ChemAxon
Polarizability50.01 ųChemAxon
Number of Rings4ChemAxon
BioavailabilityYesChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash Key
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-0axr-1019000000-73894a6c7b7346b2d1b0View in MoNA
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (1 TMS) - 70eV, Positivesplash10-002f-3005900000-c63a75d6ed190e98a35bView in MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 10V, Positive (Annotated)splash10-000i-0009000000-124abe0c8995f883f002View in MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 25V, Positive (Annotated)splash10-05oa-4942000000-dbfe3e996983256b1e0cView in MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 40V, Positive (Annotated)splash10-05o0-5900000000-8115f37d8da9a1d6f5d8View in MoNA
LC-MS/MSLC-MS/MS Spectrum - n/a 26V, negativesplash10-000i-0090000000-3645f0c0605ff7c97405View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-014r-0019000000-d2b535e3c3ed257f2215View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0ar9-3139000000-87132b4b12416fa4f01eView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0a4i-5249000000-257a8915fd5fab2dfaaaView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-001i-0009000000-8ff4cced50a3c638abbaView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-001i-0009000000-6d9a73d8f487e848e538View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0ldi-1019000000-eb1f58f2c9df95716640View in MoNA
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
2D NMR[1H,13C] 2D NMR SpectrumNot AvailableView in JSpectraViewer
Biological Properties
Cellular Locations
  • Cell membrane
  • Cytoplasm
  • Endoplasmic reticulum
  • Membrane
Biospecimen Locations
  • Adrenal Gland
  • Brain
  • Epidermis
  • Fibroblasts
  • Liver
  • Testis
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
Adrenal GlandExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
BrainExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
EpidermisExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
FibroblastsExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
LiverExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
TestisExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
Abnormal Concentrations
Not Available
HMDB IDHMDB0000032
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB021882
KNApSAcK IDC00023747
Chemspider IDNot Available
KEGG Compound IDC01164
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia Link7-Dehydrocholesterol
METLIN IDNot Available
PubChem Compound439423
PDB IDNot Available
ChEBI ID17759
References
Synthesis ReferenceWilliam G. Dauben, Jerome F. Eastham, and Robert A. Micheli A new method for the preparation of 7-dehydrocholesterol. Journal of the American Chemical Society (1951), 73 4496.
Material Safety Data Sheet (MSDS)Not Available
General ReferencesNot Available

Enzymes

General function:
Involved in 7-dehydrocholesterol reductase activity
Specific function:
Production of cholesterol by reduction of C7-C8 double bond of 7-dehydrocholesterol (7-DHC).
Gene Name:
DHCR7
Uniprot ID:
Q5E9J5
Molecular weight:
54271.0
General function:
Involved in C-8 sterol isomerase activity
Specific function:
Not Available
Gene Name:
EBP
Uniprot ID:
Q3ZBT8
Molecular weight:
26480.0
Reactions
7-Dehydrocholesterol + NADPH → Cholesterol + NADPdetails
General function:
Energy production and conversion
Specific function:
Not Available
Gene Name:
DHCR24
Uniprot ID:
A6QR14
Molecular weight:
60173.0
Reactions
7-Dehydrodesmosterol + NADPH → 7-Dehydrocholesterol + NADPdetails
General function:
Not Available
Specific function:
Not Available
Gene Name:
SC5D
Uniprot ID:
Q3SYX8
Molecular weight:
23318.0
Reactions
Lathosterol + NADPH + Oxygen → 7-Dehydrocholesterol + NADP +2 Waterdetails