Show more...Show more...
Record Information
Version2.0
Created at2022-05-11 16:50:01 UTC
Updated at2022-05-11 16:50:01 UTC
NP-MRD IDNP0087451
Secondary Accession NumbersNone
Natural Product Identification
Common NameBolasterone
DescriptionBolasterone, also known as U19763 or myagen, 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. Thus, bolasterone is considered to be a steroid lipid molecule. Bolasterone is a very hydrophobic molecule, practically insoluble (in water), and relatively neutral. In addition, it is also 7α-methylated, similar to its 7β-methylated isomer calusterone. Bolasterone is on the World Anti-Doping Agency's list of prohibited substances, and is therefore banned from use in most major sports. The medication has a low to moderate ratio of anabolic to androgenic activity, similar to that of fluoxymesterone. Bolasterone was first documented in 2000 (PMID: 10892583). It has close structural similarity to testosterone, and like methyltestosterone has a methyl group at C17α in order to increase oral bioavailability.
Structure
Thumb
Synonyms
ValueSource
7alpha,17alpha-DimethyltestosteroneKegg
17beta-Hydroxy-7alpha,17-dimethylandrost-4-en-3-oneKegg
U19763Kegg
7a,17a-DimethyltestosteroneGenerator
7Α,17α-dimethyltestosteroneGenerator
17b-Hydroxy-7a,17-dimethylandrost-4-en-3-oneGenerator
17Β-hydroxy-7α,17-dimethylandrost-4-en-3-oneGenerator
(7a,17b)-17-Hydroxy-7,17-dimethyl-androst-4-en-3-oneHMDB
17b-Hydroxy-7a,17-dimethyl-androst-4-en-3-oneHMDB
17b-Hydroxy-7a,17a-dimethylandrost-4-ene-3-oneHMDB
7a,17-Dimethyl-testosteroneHMDB
7a,17a-Dimethyl-17b-hydroxyandrost-4-en-3-oneHMDB
MyagenHMDB
Chemical FormulaC21H32O2
Average Mass316.4776 Da
Monoisotopic Mass316.24023 Da
IUPAC Name(1S,2R,9R,10R,11S,14S,15S)-14-hydroxy-2,9,14,15-tetramethyltetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadec-6-en-5-one
Traditional Namebolasterone
CAS Registry NumberNot Available
SMILES
[H][C@@]12CC[C@](C)(O)[C@@]1(C)CC[C@@]1([H])[C@@]2([H])[C@H](C)CC2=CC(=O)CC[C@]12C
InChI Identifier
InChI=1S/C21H32O2/c1-13-11-14-12-15(22)5-8-19(14,2)16-6-9-20(3)17(18(13)16)7-10-21(20,4)23/h12-13,16-18,23H,5-11H2,1-4H3/t13-,16+,17+,18-,19+,20+,21+/m1/s1
InChI KeyIVFYLRMMHVYGJH-VLOLGRDOSA-N
Experimental Spectra
Not Available
Predicted Spectra
Chemical Shift Submissions
Not Available
Species
Species of Origin
Chemical Taxonomy
Description 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.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassSteroids and steroid derivatives
Sub ClassAndrostane steroids
Direct ParentAndrogens and derivatives
Alternative Parents
Substituents
  • Androgen-skeleton
  • 3-oxo-delta-4-steroid
  • 3-oxosteroid
  • Hydroxysteroid
  • Oxosteroid
  • 17-hydroxysteroid
  • Delta-4-steroid
  • Cyclohexenone
  • Tertiary alcohol
  • Cyclic alcohol
  • Ketone
  • Cyclic ketone
  • Organooxygen compound
  • Alcohol
  • Carbonyl group
  • Organic oxygen compound
  • Hydrocarbon derivative
  • Organic oxide
  • Aliphatic homopolycyclic compound
Molecular FrameworkAliphatic homopolycyclic compounds
External Descriptors
Physical Properties
StateNot Available
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
logP3.55ALOGPS
logP3.93ChemAxon
logS-4.4ALOGPS
pKa (Strongest Acidic)19.56ChemAxon
pKa (Strongest Basic)-0.53ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area37.3 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity93.62 m³·mol⁻¹ChemAxon
Polarizability37.54 ųChemAxon
Number of Rings4ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
HMDB IDHMDB0006048
DrugBank IDDB01471
Phenol Explorer Compound IDNot Available
FoodDB IDFDB023820
KNApSAcK IDNot Available
Chemspider ID92280
KEGG Compound IDC14475
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkBolasterone
METLIN IDNot Available
PubChem Compound102146
PDB IDNot Available
ChEBI ID529021
Good Scents IDNot Available
References
General References
  1. Gonzalo-Lumbreras R, Izquierdo-Hornillos R: Optimization of the high-performance liquid chromatographic separation of a complex mixture containing urinary steroids, boldenone and bolasterone: application to urine samples. J Chromatogr B Biomed Sci Appl. 2000 May 26;742(1):47-57. doi: 10.1016/s0378-4347(00)00084-0. [PubMed:10892583 ]