CAS 73564-69-9 appears in our catalog under these names: 1，2–Di(pyridin–4–yl)ethyne, 1,2-Di(pyridin-4-yl)ethyne 95%, 1,2-Di(pyridin-4-yl)ethyne, 95%, 95%, 1,2-Di(pyridin-4-yl)ethyne, 97%. Offered by: GLPBio, Ambeed, Chemat, Fluorochem. Available pack sizes: 1g, 200mg, 100mg, 250mg, 5g, 25g, 100g, 10g.