ethylestrenol

Trade name: maxibolin

Small moleculeapproved

Approved

May 28, 1964

Ethylestrenol (INN, USAN, BAN) (brand names Maxibolin, Orabolin), or ethylnandrol (JAN), also known as 17α-ethyl ester-4-en-17β-ol or as 3-deketo-17α-ethyl-19-nortestosterone, is an anabolic-androgenic steroid (AAS) with some progestogenic activity, and low androgenic activity. It is a 17α-ethylated derivative of nandrolone and lacks the 3-keto group. It was described in the literature in 1959 and approved in 1964 for testosterone deficiency in male patients. — NCATS

Clinical trial activity

0 trials · 0 clinical orgs · 1 marketing orgs

Phase 1
0
Phase 2
0
Phase 3
0
Phase 4
0

Timeline

1960s

  1. May 28, 1964

    Organon — Earliest FDA Approval

  2. May 28, 1964

    Organon — NDA Organization

Indications

Mechanism of action

Approval history

  • approvedMay 28, 1964

Chemistry & pharmacology

Loading structure…

SMILES

CC[C@]1(O)CC[C@H]2[C@@H]3CCC4=CCCC[C@@H]4[C@H]3CC[C@]12C
Mol. weight
288.4675 g/mol
Lipinski Ro5
1 violation(s)
Rule of 3
No
Chirality
Single Stereoisomer
Inorganic
No
Polymer
No
Delivery
Oral
Availability
Discontinued

Oral

Yes

Parenteral

No

Topical

No

Sources

Also known as

  • estrenolethyl
  • ethylestrenol
  • ethylestrenol
  • ethylestrenol
  • ethylestrenol
  • ethylestrenol
  • ethylestrenol
  • ethylestrenol
  • ethylestrenol
  • ethylnandrol
  • ethylnandrol
  • ethylnandrol
  • ethyloestrenol
  • ethyloestrenol
  • maxibolin
  • maxibolin
  • maxibolin
  • orabolin
  • orabolin
  • orabolin
  • orabolin
  • orabolin
  • orabolin

Organizations

Marketing (1)

OrganizationOrg typeRelationshipDate
OrganonFor profitNDAMay 28, 1964