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Record Information
Version2.0
Created at2024-09-10 19:43:23 UTC
Updated at2024-09-10 19:43:24 UTC
NP-MRD IDNP0334732
Secondary Accession NumbersNone
Natural Product Identification
Common Name4-Chloromethandienone
Description4-Chloromethandienone, also known as 4-chlorodianabol or CDMT, 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. 4-Chloromethandienone is an extremely weak basic (essentially neutral) compound (based on its pKa). The doping was done in secret; it was only in the 1990s that Franke and Berendonk looked closely at the original archived information and discovered the true scope of just how well-planned and successful the doping regime had been (in terms of medal success and world record performances). Following allegations by the German documentary of widespread doping the IOC kicked off a reanalysis of Beijing 2008 and London 2012 samples for all sports. Weightlifters and sprinters in particular were found to have used CDMT. The idea of combining the structures of 4-chlorotestosterone (clostebol) and metandienone originated from the chemist Albert Stachowiak. It is the 4-chloro-substituted derivative of metandienone (dehydromethyltestosterone). The doping program was run by the East German Government from about 1968 until 1989 when the GDR collapsed. CDMT was the key steroid administered to approximately 10,000 athletes from East Germany (GDR) as secret official policy, often without their knowing the nature of the "vitamins" they were forced to take. Most of the doped athletes coming from Russia, Ukraine, and Belarus. The product had been introduced for clinical use from 1965 until 1994 when its production was discontinued. 4-Chloromethandienone was first documented in 1999 (PMID: 10526287). ChlorodehydromethyltestosteroneCDMT was the first original product of Jenapharm, an East German pharmaceutical company.
Structure
Thumb
Synonyms
ValueSource
(17b)-4-Chloro-17-hydroxy-17-methyl-androsta-1,4-dien-3-oneHMDB
1-Dehydro-4-chloro-17-methyltestosteroneHMDB
1-Dehydro-4-chloro-17a-methyltestosteroneHMDB
4-Chloro-1,2-dehydro-17a-methyltestosteroneHMDB
4-Chloro-1-dehydro-17-methyltestosteroneHMDB
4-Chloro-1-dehydromethyltestosteroneHMDB
4-Chloro-17a-methyl-17b-hydroxyandrosta-1,4-dien-3-oneHMDB
4-Chloro-17b-hydroxy-17-methyl-androsta-1,4-dien-3-oneHMDB
4-Chloro-17b-hydroxy-17a-methyl-5a-androsta-1,4-dien-3-oneHMDB
4-ChlorodehydromethyltestosteroneHMDB
4-ChlorodianabolHMDB
CDMTHMDB
Oral-turinabolHMDB
Turinabol-oralHMDB
DehydrochlormethyltestosteroneHMDB
D-4-Chloro-17 beta-hydroxy-3-oxo-17 alpha-methylandrosta-1,4-dieneHMDB
4-Chloro-methandienoneHMDB
Oral turinabolHMDB
Chemical FormulaC20H27ClO2
Average Mass334.8800 Da
Monoisotopic Mass334.16996 Da
IUPAC Name(1S,2R,10R,11S,14S,15S)-6-chloro-14-hydroxy-2,14,15-trimethyltetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadeca-3,6-dien-5-one
Traditional Nameoral turinabol
CAS Registry NumberNot Available
SMILES
[H][C@@]12CC[C@](C)(O)[C@@]1(C)CC[C@@]1([H])[C@@]2([H])CCC2=C(Cl)C(=O)C=C[C@]12C
InChI Identifier
InChI=1S/C20H27ClO2/c1-18-9-8-16(22)17(21)15(18)5-4-12-13(18)6-10-19(2)14(12)7-11-20(19,3)23/h8-9,12-14,23H,4-7,10-11H2,1-3H3/t12-,13+,14+,18-,19+,20+/m1/s1
InChI KeyAGUNEISBPXQOPA-XMUHMHRVSA-N
Experimental Spectra
Not Available
Predicted Spectra
Not Available
Chemical Shift Submissions
Not Available
Species
Species of OriginNot Available
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-1,4-steroid
  • 3-oxosteroid
  • 17-hydroxysteroid
  • 4-halo-steroid
  • Halo-steroid
  • Oxosteroid
  • Hydroxysteroid
  • Delta-1,4-steroid
  • Alpha-haloketone
  • Alpha-chloroketone
  • Cyclic alcohol
  • Tertiary alcohol
  • Cyclic ketone
  • Ketone
  • Chloroalkene
  • Haloalkene
  • Vinyl halide
  • Vinyl chloride
  • Alcohol
  • Organic oxide
  • Organic oxygen compound
  • Carbonyl group
  • Hydrocarbon derivative
  • Organooxygen compound
  • Organochloride
  • Organohalogen compound
  • Aliphatic homopolycyclic compound
Molecular FrameworkAliphatic homopolycyclic compounds
External DescriptorsNot Available
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
logP4.11ALOGPS
logP4.03ChemAxon
logS-4.8ALOGPS
pKa (Strongest Basic)-0.53ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area37.3 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity94.95 m³·mol⁻¹ChemAxon
Polarizability37.26 ųChemAxon
Number of Rings4ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
HMDB IDHMDB0004634
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDFDB023389
KNApSAcK IDNot Available
Chemspider ID88972
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkChlorodehydromethyltestosterone
METLIN IDNot Available
PubChem Compound98521
PDB IDNot Available
ChEBI IDNot Available
Good Scents IDNot Available
References
General References
  1. Froehner M, Fischer R, Leike S, Hakenberg OW, Noack B, Wirth MP: Intratesticular leiomyosarcoma in a young man after high dose doping with Oral-Turinabol: a case report. Cancer. 1999 Oct 15;86(8):1571-5. doi: 10.1002/(sici)1097-0142(19991015)86:8<1571::aid-cncr26>3.0.co;2-c. [PubMed:10526287 ]