Product Description (+)-Biotin methyl ester Other Details Molecular Formula: C11H18N2O3S Molecular Weight: 258.34 CAS Number: 608-16-2 Minimum Purity: 0.97 UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 250mg Leadtime:20 Days Sizes 2: 1g Leadtime:20 Days Sizes 3: 5g Leadtime:20 Days