Clinical data
Synonyms 17β-((5-Hydroxypentyl)amino)estradiol; 17β-[(5-Hydroxypentyl)amino]estra-1,3,5(10)-trien-3-ol
CAS Number
PubChem CID
Chemical and physical data
Formula C23H35NO2
Molar mass 357.54 g·mol−1
3D model (JSmol)

Pentolame, also known as 17β-((5-hydroxypentyl)amino)estradiol is a synthetic, steroidal estrogen and a 17β-aminoestrogen with anticoagulant effects that was first described in 1993 and was never marketed.[1][2][3]


  1. Lemini C, Rubio-Póo C, Silva G, García-Mondragón J, Zavala E, Mendoza-Patiño N, Castro D, Cruz-Almanza R, Mandoki JJ (1993). "Anticoagulant and estrogenic effects of two new 17 beta-aminoestrogens, butolame [17 beta-(4-hydroxy-1-butylamino)-1,3,5(10)-estratrien-3-ol] and pentolame [17 beta-(5-hydroxy-1-pentylamino)-1,3,5(10)-estratrien-3-ol]". Steroids. 58 (10): 457–61. PMID 8256254.
  2. Lemus AE, Jaimez R, Lemini C, Menjivar M, Silva G, Rubio-Poo C, Valenzuela F, Larrea F (1998). "Estrogenic effects of the synthetic aminoestrogen 17 beta-(5-hydroxy-1-pentylamino)-1,3,5(10)-estratrien-3-ol (pentolame)". Steroids. 63 (7-8): 433–8. PMID 9654651.
  3. Jaimez R, Cooney A, Jackson K, Lemus AE, Lemini C, Cárdenas M, García R, Silva G, Larrea F (2000). "In vivo estrogen bioactivities and in vitro estrogen receptor binding and transcriptional activities of anticoagulant synthetic 17beta-aminoestrogens". J. Steroid Biochem. Mol. Biol. 73 (1-2): 59–66. PMID 10822025.

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