Product Description Erythromycin estolate, 600ug/mg Other Details Molecular Formula: C40H71NO14.C12H26SO4 Molecular Weight: 1056.39 CAS Number: 3521-62-8 Minimum Purity: 0 UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 1g Leadtime:20 Days Sizes 2: 5g Leadtime:20 Days Sizes 3: 25g Leadtime:20 Days