CAS 1262788-55-5 appears in our catalog under these names: 9-(3-Pent-4-ynyl-3-H-diazirin-3-yl)-nonanoic acid, 9-(3-(Pent-4-yn-1-yl)-3H-diazirin-3-yl)nonanoic acid 95%, PACFA, 9-(3-pent-4-ynyl-3-H-diazirin-3-yl)-nonanoic acid, 95%, 95%. Offered by: Biosynth, Ambeed, Sigma-Aldrich, Chemat. Available pack sizes: 2mg, 1mg, 5mg, 10mg, 25mg, 50mg.