Levonorgestrel CAS NO.: 797-63-7 سنجش: 99% فرمول مولکولی: C21H28O2 Molecular Weight: 312.45 Quality Standard: ظاهر USP: White or almost white crystalline powder Usage: Progesterone drug, used for irregular menstruation, functional uterine bleeding, endometriosis, و غیره