Product Description 5-Methyltetrahydrofolic acid Other Details Molecular Formula: C20H22N7O6 Molecular Weight: 456.43 CAS Number: 134-35-0 Minimum Purity: 0.98 UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 1mg Leadtime:20 Days Sizes 2: 5mg Leadtime:20 Days Sizes 3: 10mg Leadtime:20 Days