CAS 137000-75-0 appears in our catalog under these names: 2，5–Diethynylpyridine, 2,5-Diethynylpyridine, >98.0%(GC), 2,5-Diethynylpyridine 98%, 2,5-Diethynylpyridine, 98%, 98%, 2,5-Diethynylpyridine, 98%. Offered by: GLPBio, TCI, Ambeed, Chemat, Fluorochem. Available pack sizes: 250mg, 1g, 100mg.