Beijing zizhu pharmaceutical co.,ltd

We are the leading steroid hormone api and intermediates manufacturer in china. our main products are as follows: levonorgestrel, ethinyl estradiol, estriol, estradiol, estradiol benzoate, estradiol valeate, estradiol enanthate, mifepristone, tibolone, quinestrol, gestodene, lynestrenol, desogestrel, misoprostol,progesterone, estradiene dione-3-ketal,methyldienedione, methylestradienedione