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.   |