Structural Formula Vector Image
Title: Mesterolone
CAS Registry Number: 1424-00-6
CAS Name: (1a,5a,17b)-17-Hydroxy-1-methylandrostan-3-one
Additional Names: 1a-methyl-5a-androstan-17b-ol-3-one; 1a-methyl-5a-dihydrotestosterone
Trademarks: Androviron (Schering AG); Proviron (Schering AG); Mestoranum (Schering AG)
Molecular Formula: C20H32O2
Molecular Weight: 304.47
Percent Composition: C 78.90%, H 10.59%, O 10.51%
Literature References: Prepn of acetate: R. Wiechert, DE 1122944 corresp to US 3361773 (1962, 1968 to Schering, AG).
Properties: Crystals from ethyl acetate, mp 203.5-205.0°. [a]D20 +17.6° (c = 0.875 in CHCl3).
Melting point: mp 203.5-205.0°
Optical Rotation: [a]D20 +17.6° (c = 0.875 in CHCl3)
Derivative Type: Acetate
Additional Names: 17b-Acetoxy-1a-methyl-5a-androstan-3-one
Molecular Formula: C22H34O3
Molecular Weight: 346.50
Percent Composition: C 76.26%, H 9.89%, O 13.85%
Properties: Crystals, mp 169-170°. [a]D25 +16.5° (c = 0.88 in CHCl3).
Melting point: mp 169-170°
Optical Rotation: [a]D25 +16.5° (c = 0.88 in CHCl3)
NOTE: This is a controlled substance (anabolic steroid): 21 CFR, 1308.13, as defined in 1300.01.
Therap-Cat: Androgen.
Keywords: Androgen.

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