Inactive analog of U-73122 (BML-ST391) which only slightly inhibits phospholipase C. May be used as a negative control. Alternative name: 1-[6-[[(17beta)-3-Methoxyestra-1,3,5(10)-trien-17-yl]amino]hexyl]-pyrrolidine-2,5-dione. Purity: ≥98% (HPLC). Solubility: Soluble in methylene chloride or chloroform; slightly soluble in DMSO (2mg/ml) or 100% ethanol (1mg/ml); sparingly soluble in aqueous solutions. Long Term Storage: Ambient.