CAS 721969-93-3 appears in our catalog under these names: Phenyl-dipyrenylphosphine oxide, 99%, Phenyldi-1-pyrenylphosphine oxide, 95-<97%, Poly((9,9-dioctylfluorenyl-2,7-diyl)-alt-(9-hexyl-3,6-carbazole)), Phenyldi(pyren–1–yl)phosphine oxide. Offered by: Lumtec, Hoffman Fine Chemicals, GLPBio. Available pack sizes: 1g, 5g, 500mg, 2,5g, 10g, 25g, On request.