Levonorgestrelis a medicine which is used in emergency hormonal contraception. Levonorgestrel is a hormone which is similar to the hormoneprogesterone that is produced by the body. It is used as emergency contraception to prevent a pregnancy after unprotected sex or after failure of a contraceptive method. It is thought to work by preventing the release of eggs from the ovary and preventing the sperm from penetrating an egg. It may also change the lining of the uterus which makes it difficult for an egg to develop.
White or practically white crystalline powder
White crystalline powder
232~239°C, and melting range is not more then 4°C
It complies with the test for specific optical rotation and melting point
Infrared absorption spectrophotometry should be consistent with levonorgestrel CRS