ReadiUse� 4% formaldehyde fixation solution Cat # 20010 Storage F/D/L (see storage codes below) Unit Size 50 mL All our ReadiUse� reagents require minimal hands-on time. This 4% formaldehyde solution is a ready-to-apply format. Detailed Information: Protocol References MSDS Related Products: Fuorescence Imaging Storage Codes: D = Desiccated L = Avoid light F = Freeze (<-15 癈) R = Refrigerated (2-4 癈) RT = Room temperature (4-50 癈)