Norethandrolone
Title: Norethandrolone
CAS Registry Number: 52-78-8
CAS Name: (17a)-17-Hydroxy-19-norpregn-4-en-3-one
Additional Names: 17a-ethyl-19-nortestosterone; 17a-ethyl-17-hydroxy-4-norandrosten-3-one; 17a-ethyl-17-hydroxy-19-norandrost-4-en-3-one
Trademarks: Nilevar (Searle); Solevar
Molecular Formula: C20H30O2
Molecular Weight: 302.45
Percent Composition: C 79.42%, H 10.00%, O 10.58%
Literature References: Prepn by catalytic hydrogenation of 17a-ethynyl-19-nortestosterone: Colton, US 2721871 (1955 to Searle); J. Am. Chem. Soc. 79, 1123 (1957).
Properties: Crystals from methanol, mp 140-141°. uv max: 240 nm (e 16500). Sol in alcohol, benzene, ether, ethyl acetate. Insol in water.
Melting point: mp 140-141°
Absorption maximum: uv max: 240 nm (e 16500)
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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