CAS 2170-06-1 appears in our catalog under these names: 1-Phenyl-2-trimethylsilylacetylene, 99% , 1-PHENYL-2-(TRIMETHYLSILYL)ACETYLENE, 99, 1-PHENYL-2-(TRIMETHYLSILYL)ACETYLENE, 9&, 1-Phenyl-2-(trimethylsilyl)acetylene, >98.0%(GC), Trimethyl(phenylethynyl)silane 95%. Offered by: Thermo Scientific (Alfa Aesar), Sigma-Aldrich, TCI, Ambeed, Chemat. Available pack sizes: 5g, 25g, 100g, 10G, 50G, 5ml, 25ml, 500g.