Product Description Azelastine HCl Other Details Molecular Formula: C22H25Cl2N3O Molecular Weight: 418.36 CAS Number: 79307-93-0 Minimum Purity: 99% (HPLC), powder UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 5mg Leadtime:20 Days Sizes 2: 10mg Leadtime:20 Days Sizes 3: 25mg Leadtime:20 Days