CAS 122111-01-7 appears in our catalog under these names: Gemcitabine Impurity 15, 2-Deoxy-2,2-difluoro-D-erythro-pentofuranos-1-ulose-3,5-dibenzoate, ((2R,3R)–3–(Benzoyloxy)–4,4–difluoro–5–oxotetrahydrofuran–2–yl)methyl benzoate, 3,5-Di-O-benzoyl-2-deoxy-2,2-difluoro-D-ribonic acid-1,4-lactone, 2-Deoxy-2,2-difluoro-D-erythro-pentonic Acid gamma-Lactone 3,5-Dibenzoate, >98.0%(HPLC). Offered by: Chemat Brand, TRC, Mikromol, GLPBio, Biosynth. Available pack sizes: on request, 100g, 1g, 25mg, 0,1kg, 0,05kg, 5g, 0,25kg.