Product Description (4-Ethynylphenyl)boronic acid Other Details Molecular Formula: C8H7BO2 Molecular Weight: 145.95 CAS Number: 263368-72-5 Minimum Purity: 0.97 UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 250mg Leadtime:20 Days Sizes 2: 1g Leadtime:20 Days Sizes 3: 5g Leadtime:20 Days