英文名称
6beta-Deshydroxy-10beta-hydroxylevonorgestrel
6β-Deshydroxy-10β-hydroxylevonorgestrel (Levonorgestrel EP Impurity I) is an impurity of Levonorgestrel (N689510), an emergency contraceptive (1,2). Levonorgestrel is safe, tolerated and effective in emergency contraception in woman.