Product Description Montelukast sodium hydrate Other Details Molecular Formula: C35H35ClNO3S.Na.H2O Molecular Weight: 626.19 CAS Number: 151767-02-1 Minimum Purity: 0.98 UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 50mg Leadtime:20 Days Sizes 2: 100mg Leadtime:20 Days Sizes 3: 250mg Leadtime:20 Days