CAS 1615286 appears in our catalog under these names: 1,4-D-Gulonolactone/ 99.74% (existing batch purity), (3R,4S,5S)-5-((R)-1,2-Dihydroxyethyl)-3,4-dihydroxydihydrofuran-2(3H)-one, 95%. Offered by: TargetMol, Fluorochem. Available pack sizes: 1g, 5g, 10g, 25g, 100g, 500g.