Ionomycin free acid Description Ionomycin is an effective Ca++ ionophore. Specifications Cas No. 56092-81-0 Product ID I5752 Product Name Ionomycin free acid Formula Wt. 709.00 Purity ≥98% Solubility Soluble in DMSO (10 mg/mL), ethanol (10 mg/mL). Insoluble in water. Store Temp +4°C Ship Temp Ambient