Identification

Name
Drostanolone
Accession Number
DB00858  (APRD00938)
Type
Small Molecule
Groups
Approved, Illicit
Description

Drostanolone (also known as dromostanolone) is a potent synthetic androgenic anabolic steroid similar to testosterone. Drostanolone is indicated in postmenopausal women with recurrent breast cancer, in a combined hormone therapy.

Structure
Thumb
Synonyms
  • 17beta-Hydroxy-2alpha-methyl-5alpha-androstan-3-one
  • 2alpha-Methyldihydrotestosterone
  • Dihydro-2alpha-methyltestosterone
  • Dromostanolone
  • Drostanolona
  • Drostanolone
  • Drostanolonum
  • Medrosteron
  • Medrotestron
  • Metholone
Product Ingredients
IngredientUNIICASInChI Key
Drostanolone propionateX20UZ57G4O521-12-0NOTIQUSPUUHHEH-UXOVVSIBSA-N
International/Other Brands
Drolban (Lilly ) / Masteril (Syntex) / Masteron (Recordati)
Categories
UNII
7DR7H00HDT
CAS number
58-19-5
Weight
Average: 304.4669
Monoisotopic: 304.240230268
Chemical Formula
C20H32O2
InChI Key
IKXILDNPCZPPRV-RFMGOVQKSA-N
InChI
InChI=1S/C20H32O2/c1-12-11-20(3)13(10-17(12)21)4-5-14-15-6-7-18(22)19(15,2)9-8-16(14)20/h12-16,18,22H,4-11H2,1-3H3/t12-,13+,14+,15+,16+,18+,19+,20+/m1/s1
IUPAC Name
(1S,2S,4R,7S,10R,11S,14S,15S)-14-hydroxy-2,4,15-trimethyltetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadecan-5-one
SMILES

Pharmacology

Indication

For use in females, for palliation of androgenresponsive recurrent mammary cancer in women who are more than one year but less than five years postmenopausal.

Structured Indications
Not Available
Pharmacodynamics

Dromostanolone is a synthetic androgen, or male hormone, similar to testosterone. Dromostanolone works by attaching itself to androgen receptors; this causes it to interact with the parts of the cell involved in the making of proteins. It may cause an increase in the synthesis of some proteins or a decrease in the synthesis of others. These proteins have a variety of effects, including blocking the growth of some types of breast cancer cells, stimulating cells that cause male sexual characteristics, and stimulating the production of red blood cells.

Mechanism of action

Dromostanolone is a synthetic androgenic anabolic steroid and is approximately 5 times as potent as natural methyltestosterone. Like testosterone and other androgenic hormones, dromostanolone binds to the androgen receptor. This causes downstream genetic transcriptional changes. This ultimately causes retention of nitrogen, potassium, and phosphorus; increases protein anabolism; and decreases amino acid catabolism. The antitumour activity of dromostanolone appears related to reduction or competitive inhibition of prolactin receptors or estrogen receptors or production.

TargetActionsOrganism
AAndrogen receptor
agonist
Human
Absorption

Well absorbed following parenteral administration.

Volume of distribution
Not Available
Protein binding
Not Available
Metabolism
Not Available
Route of elimination
Not Available
Half life
Not Available
Clearance
Not Available
Toxicity

Side effects include virilization (masculine traits in women), acne, fluid retention, and hypercalcemia.

Affected organisms
  • Humans and other mammals
Pathways
Not Available
Pharmacogenomic Effects/ADRs
Not Available

Interactions

Drug Interactions
Not Available
Food Interactions
Not Available

References

Synthesis Reference

Ringold, H.J. and Rosenkranz, G.; U.S. Patent 2,908,693; October 13, 1959; assigned to Syntex SA, Mexico. Ringold, H.J.and Rosenkranz, G.; U.S.Patent 3,118,915; January 21, 1964; assigned to Syntex Corporation, Panama.

General References
Not Available
External Links
Human Metabolome Database
HMDB14996
KEGG Compound
C14605
PubChem Compound
6011
PubChem Substance
46508724
ChemSpider
5789
ChEBI
34838
ChEMBL
CHEMBL1582
Therapeutic Targets Database
DAP000840
PharmGKB
PA164760855
Wikipedia
Drostanolone

Clinical Trials

Clinical Trials
Not Available

Pharmacoeconomics

Manufacturers
  • Eli lilly and co
Packagers
Not Available
Dosage forms
Not Available
Prices
Not Available
Patents
Not Available

Properties

State
Solid
Experimental Properties
PropertyValueSource
melting point (°C)151 °CPhysProp
logP3.99HANSCH,C ET AL. (1995)
Predicted Properties
PropertyValueSource
Water Solubility0.00605 mg/mLALOGPS
logP3.81ALOGPS
logP3.95ChemAxon
logS-4.7ALOGPS
pKa (Strongest Acidic)19.38ChemAxon
pKa (Strongest Basic)-0.88ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area37.3 Å2ChemAxon
Rotatable Bond Count0ChemAxon
Refractivity88.18 m3·mol-1ChemAxon
Polarizability36.79 Å3ChemAxon
Number of Rings4ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Predicted ADMET features
PropertyValueProbability
Human Intestinal Absorption+1.0
Blood Brain Barrier+0.984
Caco-2 permeable+0.8629
P-glycoprotein substrateSubstrate0.5627
P-glycoprotein inhibitor IInhibitor0.5153
P-glycoprotein inhibitor IINon-inhibitor0.6722
Renal organic cation transporterNon-inhibitor0.8105
CYP450 2C9 substrateNon-substrate0.7608
CYP450 2D6 substrateNon-substrate0.9117
CYP450 3A4 substrateSubstrate0.7529
CYP450 1A2 substrateNon-inhibitor0.5
CYP450 2C9 inhibitorNon-inhibitor0.6907
CYP450 2D6 inhibitorNon-inhibitor0.9731
CYP450 2C19 inhibitorNon-inhibitor0.8725
CYP450 3A4 inhibitorNon-inhibitor0.8587
CYP450 inhibitory promiscuityLow CYP Inhibitory Promiscuity0.9634
Ames testNon AMES toxic0.9326
CarcinogenicityNon-carcinogens0.8955
BiodegradationNot ready biodegradable0.9827
Rat acute toxicity2.2244 LD50, mol/kg Not applicable
hERG inhibition (predictor I)Weak inhibitor0.9399
hERG inhibition (predictor II)Non-inhibitor0.5786
ADMET data is predicted using admetSAR, a free tool for evaluating chemical ADMET properties. (23092397)

Spectra

Mass Spec (NIST)
Download (2.96 KB)
Spectra
SpectrumSpectrum TypeSplash Key
Predicted GC-MS Spectrum - GC-MSPredicted GC-MSNot Available
Mass Spectrum (Electron Ionization)MSsplash10-0f6w-8931000000-0d33c997ec04e3071c8c
Predicted MS/MS Spectrum - 10V, Positive (Annotated)Predicted LC-MS/MSNot Available
Predicted MS/MS Spectrum - 20V, Positive (Annotated)Predicted LC-MS/MSNot Available
Predicted MS/MS Spectrum - 40V, Positive (Annotated)Predicted LC-MS/MSNot Available
Predicted MS/MS Spectrum - 10V, Negative (Annotated)Predicted LC-MS/MSNot Available
Predicted MS/MS Spectrum - 20V, Negative (Annotated)Predicted LC-MS/MSNot Available
Predicted MS/MS Spectrum - 40V, Negative (Annotated)Predicted LC-MS/MSNot Available

Taxonomy

Description
This compound belongs to the class of organic compounds known as androgens and derivatives. These are 3-hydroxylated C19 steroid hormones. They are known to favor the development of masculine characteristics. They also show profound effects on scalp and body hair in humans.
Kingdom
Organic compounds
Super Class
Lipids and lipid-like molecules
Class
Steroids and steroid derivatives
Sub Class
Androstane steroids
Direct Parent
Androgens and derivatives
Alternative Parents
3-oxo-5-alpha-steroids / 17-hydroxysteroids / Secondary alcohols / Cyclic ketones / Cyclic alcohols and derivatives / Organic oxides / Hydrocarbon derivatives
Substituents
Androgen-skeleton / 3-oxosteroid / 3-oxo-5-alpha-steroid / 17-hydroxysteroid / Oxosteroid / Hydroxysteroid / Cyclic alcohol / Cyclic ketone / Secondary alcohol / Ketone
Molecular Framework
Aliphatic homopolycyclic compounds
External Descriptors
3-oxo steroid, 17beta-hydroxy steroid, anabolic androgenic steroid (CHEBI:34838)

Targets

Kind
Protein
Organism
Human
Pharmacological action
Yes
Actions
Agonist
General Function
Zinc ion binding
Specific Function
Steroid hormone receptors are ligand-activated transcription factors that regulate eukaryotic gene expression and affect cellular proliferation and differentiation in target tissues. Transcription ...
Gene Name
AR
Uniprot ID
P10275
Uniprot Name
Androgen receptor
Molecular Weight
98987.9 Da
References
  1. Zakar T, Kaufmann G, Toth M: Assignment of anabolic-androgenic and antiandrogenic properties to some chlorine-substituted steroids on the basis of their binding characteristics to the androgen receptor of the rat seminal vesicle. Exp Clin Endocrinol. 1986 Jul;87(2):133-41. [PubMed:3758193]
  2. Takahashi M, Tatsugi Y, Kohno T: Endocrinological and pathological effects of anabolic-androgenic steroid in male rats. Endocr J. 2004 Aug;51(4):425-34. [PubMed:15351799]
  3. Chen X, Ji ZL, Chen YZ: TTD: Therapeutic Target Database. Nucleic Acids Res. 2002 Jan 1;30(1):412-5. [PubMed:11752352]

Enzymes

Kind
Protein
Organism
Human
Pharmacological action
Unknown
Actions
Inhibitor
General Function
Oxygen binding
Specific Function
Catalyzes the formation of aromatic C18 estrogens from C19 androgens.
Gene Name
CYP19A1
Uniprot ID
P11511
Uniprot Name
Aromatase
Molecular Weight
57882.48 Da
References
  1. Navarro-Martin L, Blazquez M, Piferrer F: Masculinization of the European sea bass (Dicentrarchus labrax) by treatment with an androgen or aromatase inhibitor involves different gene expression and has distinct lasting effects on maturation. Gen Comp Endocrinol. 2009 Jan 1;160(1):3-11. doi: 10.1016/j.ygcen.2008.10.012. Epub 2008 Oct 18. [PubMed:18983844]

Carriers

Kind
Protein
Organism
Human
Pharmacological action
Unknown
General Function
Androgen binding
Specific Function
Functions as an androgen transport protein, but may also be involved in receptor mediated processes. Each dimer binds one molecule of steroid. Specific for 5-alpha-dihydrotestosterone, testosterone...
Gene Name
SHBG
Uniprot ID
P04278
Uniprot Name
Sex hormone-binding globulin
Molecular Weight
43778.755 Da
References
  1. Overington JP, Al-Lazikani B, Hopkins AL: How many drug targets are there? Nat Rev Drug Discov. 2006 Dec;5(12):993-6. [PubMed:17139284]
  2. Imming P, Sinning C, Meyer A: Drugs, their targets and the nature and number of drug targets. Nat Rev Drug Discov. 2006 Oct;5(10):821-34. [PubMed:17016423]

Drug created on June 13, 2005 07:24 / Updated on November 07, 2017 01:43