CAS 2510-23-8 appears in our catalog under these names: 3–Ethynylpyridine, 3-Ethynylpyridine, 97% , 3-Ethynylpyridine, 3-Ethynylpyridine, >98.0%(GC)(T), 3-Ethynylpyridine, 96%. Offered by: GLPBio, Thermo Scientific (Alfa Aesar), Biosynth, TCI, Thermo Scientific (Acros). Available pack sizes: 25g, 5g, 1g, 100g, 50g, 250g, 10g, 250mg.