Product Name: Levonorgestrel 

CAS No: 797-63-7

MF: C21H28O2

MW: 312.45

Description: Levonorgestrel (or l-norgestrel or D-norgestrel) (Plan B, Next Choice, Postinor, and others) is a second generation synthetic progestogen used as an active ingredient in some hormonal contraceptives, including combined oral contraceptive pills, progestogen only pills, emergency contraceptive pills, intrauterine systems, contraceptive implants, and hormone replacement therapy.