Cyproterone acetate CAS NO.427-51-0

1,2-alpha-methylene-6-chloro-delta-(sup4,6)-pregnadiene-17-alpha-ol-3,20-dio;1,2-alpha-methylene-6-chloro-delta(sup6)-17-alpha-hydroxyprogesteroneacetat;1,2-alpha-methylene-6-chloro-pregna-4,6-diene-3,20-dione17-alpha-acetate;17-alpha-acetoxy-6-chloro-1-alpha,2-alpha-methylenepregna-4,6-diene-3,20-dio;20-dione,6-chloro-17-hydroxy-1-alpha,2-alpha-methylene-pregna-6-diene-3;6)-pregnadiene-17-alpha-ol-3,20-dione17-2-alpha-methylene-6-chloro-(sup4;6-chlor-delta(sup6)-1,2-alpha-methylen-17-alpha-hydroxyprogesteronacetat;6-chloro-1,2-alpha-methylene-17-alpha-hydroxy-delta(sup6)-progesteroneaceta      

Cyproterone acetate Chemical Properties

mp  200-201°C
storage temp.  2-8°C

EPA Substance Registry System 3'H-Cyclopropa[ 1,2]pregna-1,4,6-triene-3, 20-dione, 17-(acetyloxy)-6-chloro-1, 2-dihydro-, (1.beta.,2.beta.)-(427-51-0)

Safety Information

Hazard Codes  Xn,Xi
Risk Statements  20/21/22-40-36/37/38
Safety Statements  22-36-26
WGK Germany  3

RTECS  GZ2230000                        

Hazardous Substances Data 427-51-0(Hazardous Substances Data)                  

Cyproterone acetate Usage And Synthesis             

Chemical Properties Crystalline Solid         
Usage Used as an antiandrogen. Combinded with estrogen in the treatment of acne
Usage The free alcohol is an anti-androgen; the acetate is both an anti-androgen and a progestogen. Combined with estrogen it is used in the treatment of acne.                   
Usage antiparasitic, fasciolicide