乙基羥基二降孕二烯炔酮

白色或近白色結晶性粉末。丙酮(tong)(tong)-正己烷結晶，熔點197.9℃。[α] D22-185.7°（C=0.5，氯仿）。它(ta)(ta)屬于(yu)孕酮(tong)(tong)類。它(ta)(ta)是一種(zhong)孕酮(tong)(tong)作用(yong)最強、用(yong)量(liang)最少的(de)(de)避孕藥具。它(ta)(ta)的(de)(de)孕酮(tong)(tong)活性是左炔諾(nuo)孕酮(tong)(tong)的(de)(de)兩倍。它(ta)(ta)沒有雌激素和(he)雄激素的(de)(de)作用(yong)。它(ta)(ta)被用(yong)作抗孕酮(tong)(tong)藥物。