Product Description 4-Phenylethynylphthalic acid Other Details Molecular Formula: C16H10O4 Molecular Weight: 266.25 CAS Number: 219537-88-9 Minimum Purity: 0.98 UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 1g Leadtime:50 Days Sizes 2: 5g Leadtime:50 Days Sizes 3: 0 Leadtime:0