Product Description Norethisterone acetate Other Details Molecular Formula: C22H28O3 Molecular Weight: 340.46 CAS Number: 51-98-9 Minimum Purity: 98% (HPLC) UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 25mg Leadtime:20 Days Sizes 2: 100mg Leadtime:20 Days Sizes 3: 1g Leadtime:20 Days