Basic Info

Common NameErgocalciferol(F04733)
2D Structure
Description

Ergocalciferol is a form of Vitamin D, also called vitamin D2. It is created from viosterol, which in turn is created when ultraviolet light activates ergosterol. Ergocalciferol is used in the treatment of hypcalcemia and in dialysis-dependent renal failure. Ergoalcifediol is a fat soluble steroid hormone precursor of vitamin D that contributes to the maintenance of normal levels of calcium and phosphorus in the bloodstream. Vitamin D2 is the form of vitamin D most commonly added to foods and nutritional supplements. Vitamin D2 must be transformed (hydroxylated) into one of two active forms via the liver or kidney. Once transformed, it binds to the vitamin D receptor that then leads to a variety of regulatory roles.

FRCD IDF04733
CAS Number50-14-6
PubChem CID5280793
FormulaC28H44O
IUPAC Name

(1S,3Z)-3-[(2E)-2-[(1R,3aS,7aR)-1-[(E,2R,5R)-5,6-dimethylhept-3-en-2-yl]-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylidenecyclohexan-1-ol

InChI Key

MECHNRXZTMCUDQ-RKHKHRCZSA-N

InChI

InChI=1S/C28H44O/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/h9-10,12-13,19-20,22,25-27,29H,4,7-8,11,14-18H2,1-3,5-6H3/b10-9+,23-12+,24-13-/t20-,22+,25-,26+,27-,28+/m0/s1

Canonical SMILES

CC(C)C(C)C=CC(C)C1CCC2C1(CCCC2=CC=C3CC(CCC3=C)O)C

Isomeric SMILES

C[C@H](/C=C/[C@H](C)C(C)C)[C@H]1CC[C@@H]\2[C@@]1(CCC/C2=C\C=C/3\C[C@H](CCC3=C)O)C

WikipediaErgocalciferol
Synonyms
        
            Oleovitamin D2
        
            ergocalciferol
        
            VITAMIN D2
        
            Calciferol
        
            Viosterol
        
            Ercalciol
        
            Ergorone
        
            Detalup
        
            Condocaps
        
            Crystallina
        
Classifies
                

                  
                    Predicted: Pollutant
                  

                
        
Update DateNov 13, 2018 17:07

Chemical Taxonomy

KingdomOrganic compounds
SuperclassLipids and lipid-like molecules
ClassSteroids and steroid derivatives
SubclassVitamin D and derivatives
Intermediate Tree NodesNot available
Direct ParentVitamin D and derivatives
Alternative Parents
Molecular FrameworkAliphatic homopolycyclic compounds
SubstituentsTriterpenoid - Cyclic alcohol - Secondary alcohol - Organic oxygen compound - Hydrocarbon derivative - Organooxygen compound - Alcohol - Aliphatic homopolycyclic compound
DescriptionThis compound belongs to the class of organic compounds known as vitamin d and derivatives. These are compounds containing a secosteroid backbone, usually secoergostane or secocholestane.

Properties

Property NameProperty Value
Molecular Weight396.659
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count1
Rotatable Bond Count5
Complexity678
Monoisotopic Mass396.339
Exact Mass396.339
XLogP7.4
Formal Charge0
Heavy Atom Count29
Defined Atom Stereocenter Count6
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count3
Undefined Bond Stereocenter Count0
Isotope Atom Count0
Covalently-Bonded Unit Count1

ADMET

Model Result Probability
Absorption
Blood-Brain BarrierBBB+0.9428
Human Intestinal AbsorptionHIA+1.0000
Caco-2 PermeabilityCaco2+0.8323
P-glycoprotein SubstrateSubstrate0.6628
P-glycoprotein InhibitorInhibitor0.7614
Non-inhibitor0.8391
Renal Organic Cation TransporterNon-inhibitor0.7960
Distribution
Subcellular localizationLysosome0.5154
Metabolism
CYP450 2C9 SubstrateNon-substrate0.8432
CYP450 2D6 SubstrateNon-substrate0.9003
CYP450 3A4 SubstrateSubstrate0.7362
CYP450 1A2 InhibitorNon-inhibitor0.9046
CYP450 2C9 InhibitorNon-inhibitor0.8924
CYP450 2D6 InhibitorNon-inhibitor0.9519
CYP450 2C19 InhibitorNon-inhibitor0.8784
CYP450 3A4 InhibitorNon-inhibitor0.8142
CYP Inhibitory PromiscuityLow CYP Inhibitory Promiscuity0.8163
Excretion
Toxicity
Human Ether-a-go-go-Related Gene InhibitionWeak inhibitor0.8502
Non-inhibitor0.7513
AMES ToxicityNon AMES toxic0.9401
CarcinogensNon-carcinogens0.9169
Fish ToxicityHigh FHMT0.9969
Tetrahymena Pyriformis ToxicityHigh TPT0.9286
Honey Bee ToxicityHigh HBT0.8651
BiodegradationNot ready biodegradable0.9742
Acute Oral ToxicityI0.8502
Carcinogenicity (Three-class)Non-required0.5685

Model Value Unit
Absorption
Aqueous solubility-4.5363LogS
Caco-2 Permeability1.6350LogPapp, cm/s
Distribution
Metabolism
Excretion
Toxicity
Rat Acute Toxicity3.6931LD50, mol/kg
Fish Toxicity-0.1791pLC50, mg/L
Tetrahymena Pyriformis Toxicity0.9458pIGC50, ug/L

References

TitleJournalDatePubmed ID
How much is too much? Two contrasting cases of excessive vitamin D supplementation.Clin Chim Acta2017 Oct28801091
25-hydroxyvitamin D circulates in different fractions of calf plasma if the parent compound is vitamin D₂ or vitamin D₃, respectively.J Dairy Res2016 Feb26608575
Vitamin D deficiency: appropriate replenishment therapies and the effects of vitamin D toxicity.Consult Pharm2010 Mar20363711
Very high-dose ergocalciferol is effective for correcting vitamin D deficiency in children and young adults with cystic fibrosis.J Cyst Fibros2009 Jul19447079
25-hydroxycholecalciferol in poultry nutrition.Poult Sci1995 Dec8825582
A large dose of ergocalciferol does not cause deficient blood coagulation but is extremely toxic to rats.Toxicol Lett1993 Sep8212066
On the role of corticoids in conditioning the gastric mucosa to certain toxic actions of ergocalciferol.Br J Nutr195713413121

Targets

General Function:
Vitamin d3 25-hydroxylase activity
Specific Function:
Has a D-25-hydroxylase activity on both forms of vitamin D, vitamin D(2) and D(3).
Gene Name:
CYP2R1
Uniprot ID:
Q6VVX0
Molecular Weight:
57358.82 Da
Mechanism of Action:
Vitamin D2 is the form of vitamin D most commonly added to foods and nutritional supplements. Vitamin D2 must be transformed (hydroxylated) into one of two active forms via the liver or kidney. Once transformed, it binds to the vitamin D receptor that then leads to a variety of regulatory roles. Vitamin D plays an important role in maintaining calcium balance and in the regulation of parathyroid hormone (PTH). It promotes renal reabsorption of calcium, increases intestinal absorption of calcium and phosphorus, and increases calcium and phosphorus mobilization from bone to plasma. Vitamin D2 and its analogs appear to promote intestinal absorption of calcium through binding to a specific receptor in the mucosal cytoplasm of the intestine. Subsequently, calcium is absorbed through formation of a calcium-binding protein.
References
  1. Ramos-Lopez E, Bruck P, Jansen T, Pfeilschifter JM, Radeke HH, Badenhoop K: CYP2R1-, CYP27B1- and CYP24-mRNA expression in German type 1 diabetes patients. J Steroid Biochem Mol Biol. 2007 Mar;103(3-5):807-10. Epub 2007 Jan 16. [17223345 ]
General Function:
Zinc ion binding
Specific Function:
Nuclear receptor that binds and is activated by variety of endogenous and xenobiotic compounds. Transcription factor that activates the transcription of multiple genes involved in the metabolism and secretion of potentially harmful xenobiotics, drugs and endogenous compounds. Activated by the antibiotic rifampicin and various plant metabolites, such as hyperforin, guggulipid, colupulone, and isoflavones. Response to specific ligands is species-specific. Activated by naturally occurring steroids, such as pregnenolone and progesterone. Binds to a response element in the promoters of the CYP3A4 and ABCB1/MDR1 genes.
Gene Name:
NR1I2
Uniprot ID:
O75469
Molecular Weight:
49761.245 Da
References
  1. Sipes NS, Martin MT, Kothiya P, Reif DM, Judson RS, Richard AM, Houck KA, Dix DJ, Kavlock RJ, Knudsen TB: Profiling 976 ToxCast chemicals across 331 enzymatic and receptor signaling assays. Chem Res Toxicol. 2013 Jun 17;26(6):878-95. doi: 10.1021/tx400021f. Epub 2013 May 16. [23611293 ]
General Function:
Iron ion binding
Specific Function:
Catalyzes the conversion of 25-hydroxyvitamin D3 (25(OH)D) to 1-alpha,25-dihydroxyvitamin D3 (1,25(OH)2D) plays an important role in normal bone growth, calcium metabolism, and tissue differentiation.
Gene Name:
CYP27B1
Uniprot ID:
O15528
Molecular Weight:
56503.475 Da
Mechanism of Action:
Vitamin D2 is the form of vitamin D most commonly added to foods and nutritional supplements. Vitamin D2 must be transformed (hydroxylated) into one of two active forms via the liver or kidney. Once transformed, it binds to the vitamin D receptor that then leads to a variety of regulatory roles. Vitamin D plays an important role in maintaining calcium balance and in the regulation of parathyroid hormone (PTH). It promotes renal reabsorption of calcium, increases intestinal absorption of calcium and phosphorus, and increases calcium and phosphorus mobilization from bone to plasma. Vitamin D2 and its analogs appear to promote intestinal absorption of calcium through binding to a specific receptor in the mucosal cytoplasm of the intestine. Subsequently, calcium is absorbed through formation of a calcium-binding protein.
References
  1. Turunen MM, Dunlop TW, Carlberg C, Vaisanen S: Selective use of multiple vitamin D response elements underlies the 1 alpha,25-dihydroxyvitamin D3-mediated negative regulation of the human CYP27B1 gene. Nucleic Acids Res. 2007;35(8):2734-47. Epub 2007 Apr 10. [17426122 ]
General Function:
Zinc ion binding
Specific Function:
Nuclear hormone receptor. Transcription factor that mediates the action of vitamin D3 by controlling the expression of hormone sensitive genes. Recruited to promoters via its interaction with BAZ1B/WSTF which mediates the interaction with acetylated histones, an essential step for VDR-promoter association. Plays a central role in calcium homeostasis.
Gene Name:
VDR
Uniprot ID:
P11473
Molecular Weight:
48288.64 Da
Mechanism of Action:
Vitamin D2 is the form of vitamin D most commonly added to foods and nutritional supplements. Vitamin D2 must be transformed (hydroxylated) into one of two active forms via the liver or kidney. Once transformed, it binds to the vitamin D receptor that then leads to a variety of regulatory roles. Vitamin D plays an important role in maintaining calcium balance and in the regulation of parathyroid hormone (PTH). It promotes renal reabsorption of calcium, increases intestinal absorption of calcium and phosphorus, and increases calcium and phosphorus mobilization from bone to plasma. Vitamin D2 and its analogs appear to promote intestinal absorption of calcium through binding to a specific receptor in the mucosal cytoplasm of the intestine. Subsequently, calcium is absorbed through formation of a calcium-binding protein.
References
  1. Carvallo L, Henriquez B, Olate J, van Wijnen AJ, Lian JB, Stein GS, Onate S, Stein JL, Montecino M: The 1alpha,25-dihydroxy Vitamin D3 receptor preferentially recruits the coactivator SRC-1 during up-regulation of the osteocalcin gene. J Steroid Biochem Mol Biol. 2007 Mar;103(3-5):420-4. Epub 2007 Jan 10. [17218095 ]