Product Description Pyrazine Other Details Molecular Formula: C4H4N2 Molecular Weight: 80.09 CAS Number: 290-37-9 Minimum Purity: 98% (GC) UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 5g Leadtime:20 Days Sizes 2: 25g Leadtime:20 Days Sizes 3: 100g Leadtime:20 Days