CAS 3973-17-9 appears in our catalog under these names: Propargyl alcohol propoxylate, 95%, Propargyl Alcohol Propoxylate, 1-(Prop-2-yn-1-yloxy)propan-2-ol 97+%, 1-(Prop-2-yn-1-yloxy)propan-2-ol 90%. Offered by: Combi-blocks, GLPBio, Ambeed. Available pack sizes: 5g, 1g, 250mg, 50mg, 25g, 100g, 500g.