Product Description Mal-PEG6-COOH Other Details Molecular Formula: C22H36N2O11 Molecular Weight: 504.5 CAS Number: 1334177-79-5 Minimum Purity: 0.95 UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 100mg Leadtime:50 Days Sizes 2: 250mg Leadtime:50 Days Sizes 3: 1g Leadtime:50 Days