Record Information
Version1.0
Creation Date2009-07-21 20:28:17 UTC
Update Date2026-05-14 16:57:23 UTC
Accession NumberCHEM002336
Identification
Common NameDihydrotachysterol
ClassSmall Molecule
DescriptionDihydrotachysterol is only found in individuals that have used or taken this drug. It is a vitamin D that can be regarded as a reduction product of vitamin D2. [PubChem]Once hydroxylated to 25-hydroxydihydrotachysterol, the modified drug binds to the vitamin D receptor. The bound form of the vitamin D receptor serves as a transcriptional regulator of bone matrix proteins, inducing the expression of osteocalcin and suppressing synthesis of type I collagen. Vitamin D (when bound to the vitamin D receptor)stimulates the expression of a number of proteins involved in transporting calcium from the lumen of the intestine, across the epithelial cells and into blood. This stimulates intestinal calcium absorption and increases renal phosphate excretion. These are functions that are normally carried out by the parathyroid hormone.
Contaminant Sources
  • HMDB Contaminants - Urine
  • STOFF IDENT Compounds
  • T3DB toxins
  • ToxCast & Tox21 Chemicals
Contaminant Type
  • Antihypocalcemic Agent
  • Antihypoparathyroid Agent
  • Antithyroid Agent
  • Bone Density Conservation Agent
  • Drug
  • Metabolite
  • Organic Compound
  • Synthetic Compound
  • Vitamin
  • Vitamin D
Chemical Structure
Thumb
Synonyms
ValueSource
Anti-tetany substance 10ChEBI
AT 10ChEBI
DihidrotaquisterolChEBI
DihydrotachysterolumChEBI
HytakerolKegg
Vitamin D4HMDB
AT-10HMDB
DihydrotachysterinHMDB
CalcamineHMDB
TachystinHMDB
DihydrotachysterolMeSH
Chemical FormulaC28H46O
Average Molecular Mass398.664 g/mol
Monoisotopic Mass398.355 g/mol
CAS Registry Number67-96-9
IUPAC Name(1S,3E,4S)-3-{2-[(1R,3aS,4E,7aR)-1-[(2R,3E,5R)-5,6-dimethylhept-3-en-2-yl]-7a-methyl-octahydro-1H-inden-4-ylidene]ethylidene}-4-methylcyclohexan-1-ol
Traditional Namedihydrotachysterol
SMILESCC(C)[C@@H](C)\C=C\[C@@H](C)[C@@]1([H])CC[C@@]2([H])\C(CCC[C@]12C)=C\C=C1/C[C@@H](O)CC[C@@H]1C
InChI IdentifierInChI=1S/C28H46O/c1-19(2)20(3)9-10-22(5)26-15-16-27-23(8-7-17-28(26,27)6)12-13-24-18-25(29)14-11-21(24)4/h9-10,12-13,19-22,25-27,29H,7-8,11,14-18H2,1-6H3/b10-9+,23-12+,24-13+/t20-,21-,22+,25-,26+,27-,28+/m0/s1
InChI KeyILYCWAKSDCYMBB-OPCMSESCSA-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
  • Cyclic alcohol
  • Secondary alcohol
  • Organic oxygen compound
  • Hydrocarbon derivative
  • Organooxygen compound
  • Alcohol
  • Aliphatic homopolycyclic compound
Molecular FrameworkAliphatic homopolycyclic compounds
External Descriptors
Biological Properties
StatusDetected and Not Quantified
OriginExogenous
Cellular Locations
  • Cytoplasm
  • Extracellular
  • Membrane
Biofluid LocationsNot Available
Tissue LocationsNot Available
PathwaysNot Available
Applications
Biological RolesNot Available
Chemical RolesNot Available
Physical Properties
StateSolid
AppearanceWhite powder.
Experimental Properties
PropertyValue
Melting Point126°C
Boiling PointNot Available
Solubility1.25e-04 g/L
Predicted Properties
PropertyValueSource
Water Solubility0.00012 g/LALOGPS
logP7.86ALOGPS
logP7.4ChemAxon
logS-6.5ALOGPS
pKa (Strongest Acidic)18.3ChemAxon
pKa (Strongest Basic)-1.4ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area20.23 ŲChemAxon
Rotatable Bond Count5ChemAxon
Refractivity129.11 m³·mol⁻¹ChemAxon
Polarizability51.76 ųChemAxon
Number of Rings3ChemAxon
Bioavailability1ChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyView
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-001i-2019000000-a25426597248c698f736Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (1 TMS) - 70eV, Positivesplash10-0a6r-3103900000-bf70f5229a3e34f795e7Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot AvailableSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-001j-1129000000-0c37fcd73cd4972f1d50Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-053s-6794000000-e9c4c79ce6a507e58368Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-001a-9443000000-11a52623622a19799c69Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0002-0009000000-1c0f3d5bebebe0780fbfSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0002-0009000000-52701eab15bf18780aa5Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-001i-2139000000-5396e6f92c207461f65aSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0072-0369000000-d773f335304229d55758Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0pi0-8593000000-90c048d89e79047eeb55Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0a59-9510000000-f457d7fa33f040482033Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0002-0009000000-e498e01b3e96aae00d55Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0002-0009000000-7ea54f15d7214f9149aaSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-052b-0239000000-4f1a1f77da9551c30826Spectrum
Toxicity Profile
Route of ExposureOral
Mechanism of ToxicityOnce hydroxylated to 25-hydroxydihydrotachysterol, the modified drug binds to the vitamin D receptor. The bound form of the vitamin D receptor serves as a transcriptional regulator of bone matrix proteins, inducing the expression of osteocalcin and suppressing synthesis of type I collagen. Vitamin D (when bound to the vitamin D receptor)stimulates the expression of a number of proteins involved in transporting calcium from the lumen of the intestine, across the epithelial cells and into blood. This stimulates intestinal calcium absorption and increases renal phosphate excretion. These are functions that are normally carried out by the parathyroid hormone.
MetabolismNot Available
Toxicity ValuesNot Available
Lethal DoseNot Available
Carcinogenicity (IARC Classification)No indication of carcinogenicity to humans (not listed by IARC).
Uses/SourcesUsed for the prevention and treatment of rickets or osteomalacia, and to manage hypocalcemia associated with hypoparathyroidism or pseudohypoparathyroidism. Also used for the treatment of vitamin D dependent rickets, rickets or osteomalacia secondary to long-term high dose anticonvulsant therapy, early renal osteodystrophy, osteoporosis (in conjunction with calcium), and hypophosphatemia associated with Fanconi syndrome (with treatment of acidosis).
Minimum Risk LevelNot Available
Health EffectsNot Available
SymptomsToxicity associated with dihydrotachysterol is similar to that seen with large doses of vitamin D.
TreatmentTreatment of overdosage consists of withdrawal of dihydrotachysterol, bed rest, liberal intake of fluids, a low-calcium diet, and administration of a laxative. Hypercalcemic crisis with dehydration, stupor, coma, and azotemia requires more vigorous treatment. The first step should be hydration of the patient. Intravenous saline may quickly and significantly increase urinary calcium excretion. A loop diurectic (furosemide or ethacrynic acid) may be given with the saline infusion to further increase renal calcium excretion. Other reported therapeutic measures include dialysis or the administration of citrates, sulfates, phosphates, corticosteroids, EDTA (ethylenediaminetetraacetic acids), and mithramycin via appropriate regimens. (5)
Concentrations
Not Available
DrugBank IDDB01070
HMDB IDHMDB0015203
FooDB IDNot Available
Phenol Explorer IDNot Available
KNApSAcK IDNot Available
BiGG IDNot Available
BioCyc IDNot Available
METLIN IDNot Available
PDB IDNot Available
Wikipedia LinkDihydrotachysterol
Chemspider ID4470607
ChEBI ID4591
PubChem Compound ID5311071
Kegg Compound IDC06957
YMDB IDNot Available
ECMDB IDNot Available
References
Synthesis Reference

von Werder, F.; U.S. Patent 2,228,491; January 14,1941; assigned to Winthrop Chemical
Company, Inc.

MSDSNot Available
General References
1. https://www.ncbi.nlm.nih.gov/pubmed/?term=24766747
2. https://www.ncbi.nlm.nih.gov/pubmed/?term=25075826
3. Bosch R, Thijssen JH, Duursma SA: Action and metabolism of dihydrotachysterol2. J Steroid Biochem. 1987;27(4-6):829-36.
4. Pierides AM: Pharmacology and therapeutic use of vitamin D and its analogues. Drugs. 1981 Apr;21(4):241-56.
5. DeLuca HF: Overview of general physiologic features and functions of vitamin D. Am J Clin Nutr. 2004 Dec;80(6 Suppl):1689S-96S.
6. Simons K, Toomre D: Lipid rafts and signal transduction. Nat Rev Mol Cell Biol. 2000 Oct;1(1):31-9.
7. Watson AD: Thematic review series: systems biology approaches to metabolic and cardiovascular disorders. Lipidomics: a global approach to lipid analysis in biological systems. J Lipid Res. 2006 Oct;47(10):2101-11. Epub 2006 Aug 10.
8. Sethi JK, Vidal-Puig AJ: Thematic review series: adipocyte biology. Adipose tissue function and plasticity orchestrate nutritional adaptation. J Lipid Res. 2007 Jun;48(6):1253-62. Epub 2007 Mar 20.
9. Lingwood D, Simons K: Lipid rafts as a membrane-organizing principle. Science. 2010 Jan 1;327(5961):46-50. doi: 10.1126/science.1174621.
10. The lipid handbook with CD-ROM