CAS 142689-23-4 appears in our catalog under these names: Abz-Gly-Ala-Ala-Pro-Phe-3-nitro-Tyr-Asp-OH trifluoroacetate salt, Fluorescent Substrate for Pro-Specific Proteases. Offered by: Biosynth, MedChemExpress. Available pack sizes: 2000ug, 1000ug, 5000ug, Get quote.