CAS 1342820-49-8 appears in our catalog under these names: Fmoc-D-Val-OSu 97%, (R)-2,5-Dioxopyrrolidin-1-yl 2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-methylbutanoate, ≥98%, ≥98%. Offered by: Ambeed, Chemat. Available pack sizes: 1g, 5g, 10g, 25g, 100g.