Product Description Apramycin sulfate, >550U/mg Other Details Molecular Formula: C21H43N5O15S Molecular Weight: 637.66 CAS Number: 65710-07-8 Minimum Purity: 0 UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 100mg Leadtime:20 Days Sizes 2: 1g Leadtime:20 Days Sizes 3: 5g Leadtime:20 Days