We offer androstenedione . Molecular formula c19h26o2 molecular weight 286.41 cas registry number 63-05-8 einecs 200-554-5 melting point 170-173assay: 98% min. Appearance: white crystalline powder. Usage: pharmaceutical material, steroid hormone, main intermediate for the production of steroidal hormone drugs and contraceptives. Packing: 1kg net/foil bag or tin. Delivery: express courier. The min. Order is 10 grams.