Oxabolone
Title: Oxabolone
CAS Registry Number: 4721-69-1
CAS Name: (17b)-4,17-Dihydroxyestr-4-en-3-one
Additional Names: 4-hydroxy-19-nortestosterone; 19-norandrost-4-ene-4,17b-diol-3-one
Molecular Formula: C18H26O3
Molecular Weight: 290.40
Percent Composition: C 74.45%, H 9.02%, O 16.53%
Literature References: Prepn: Camerino et al., US 2999870 and US 3145201 (1961, 1964, both to Farmitalia). Prepn of the cypionate: Camerino, Patelli, GB 879622 and US 3020295 (1961, 1962, both to Farmitalia).
Properties: Solid, mp 188-190°. uv max: 278 nm (11600).
Melting point: mp 188-190°
Absorption maximum: uv max: 278 nm (11600)
 
Derivative Type: 17-Cyclopentanepropionate
CAS Registry Number: 1254-35-9
Additional Names: 17b-(2-Cyclopentylpropionyloxy)-4-hydroxyestr-4-en-3-one; oxabolone cypionate
Trademarks: Steranabol long-acting; Steranabol ritardo
Molecular Formula: C26H38O4
Molecular Weight: 414.58
Percent Composition: C 75.32%, H 9.24%, O 15.44%
Properties: Crystalline powder, mp 158-160°. [a]D20 +30° (c = 1 in chloroform). uv max (alc): 276 nm (E1%1cm 315). Practically insol in water, hexane. Slightly sol in methanol; sol in chloroform, dioxane, benzene.
Melting point: mp 158-160°
Optical Rotation: [a]D20 +30° (c = 1 in chloroform)
Absorption maximum: uv max (alc): 276 nm (E1%1cm 315)
 
Therap-Cat: Anabolic.
Keywords: Anabolic.
 
 
Status: This monograph has been retired and is no longer subject to revision or update.

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