Product Description Calcium levofolinate Other Details Molecular Formula: C20H21CaN7O7 Molecular Weight: 511.5 CAS Number: 80433-71-2 Minimum Purity: 0.98 UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 250mg Leadtime:20 Days Sizes 2: 500mg Leadtime:20 Days Sizes 3: 1g Leadtime:20 Days