19-Norethindrone acetate English Synonyms: 17-Acetyloxy(17alpha)-19-norpregn-4-estren-17beta-ol-acetate-3-one; 17alpha-Ethinyl-19-nortestosterone 17beta-acetate CAS NO.: 51-98-9 Assay: 98% Molecular Formula: C22H28O3 Molecular Weight: 340.46 Specifications: BP2002, EP4 Packing: foil bags Usage: Pregnancy hormone, for irregular menstruation, functional uterine bleeding, endometriosis psychosis E-mail: zq@chembj.com Skype: fan-@outlook.com