CAS 5216-30-8 appears in our catalog under these names: 3,3'-Dichlorodiphenylacetylene, 95%, 1,2-Bis(3-chlorophenyl)ethyne, 95-<97%, 3,3'-Dichlorodiphenylacetylene. Offered by: Combi-blocks, Hoffman Fine Chemicals, Biosynth. Available pack sizes: 250mg, 1g, 10g, 25g, 50g, 100g, 200g, 300g.