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Levonorgestrel (Levonelle) is a synthetic progestogen used as an active ingredient in some hormonal contraceptives. It is a hormonally active levorotatory enantiomer of the racemic mixture norgestrel. It is a gonane progestin derived from 19-nortestosterone.
| Molecular Weight | 312.45 |
| Formula | C21H28O2 |
| CAS Number | 797-63-7 |
| Form | Solid |
| Solubility (25°C) | DMSO 40 mg/mL |
| Storage |
Powder -20°C 3 years ; 4°C 2 years In solvent -80°C 6 months ; -20°C 1 month |
[2] Giovanni Grandi, et al. Levonorgestrel-releasing intra-uterine systems as female contraceptives
[4] Toni M Dando, et al. Low-dose ethinylestradiol/levonorgestrel
| Related Progesterone Receptor Products |
|---|
| Dienogest
Dienogest is an orally-active semisynthetic, steroidal progestogen (or progestin). |
| Gestodene
Gestodene is a synthetic progestin used as a contraceptive. |
| Altrenogest
Altrenogest is a progestogen structurally related to veterinary steroid trenbolone. |
| Dydrogesterone
Dydrogesterone is an orally active progestogen which acts directly on the uterus, producing a complete secretory endometrium in an estrogen-primed uterus. |
| Ethynodiol diacetate
Ethynodiol diacetate is one of the first synthetic progestogens used in contraceptive pills. |
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