CAS 1356383-18-0 appears in our catalog under these names: Biotin Impurity 22, 2-(N2-(4-Azido-2,3,5,6-tetrafluorobenzoyl)-N6-(6-biotinamidocaproyl)-L-lysinyl)ethyl Methanethiosulfonate, 2-(N2-(4-Azido-2,3,5,6-tetrafluorobenzoyl)-N6-(6-biotinamidocaproyl)-L-lysinyl)ethyl Methanethiosulf. Offered by: Hubei YoungXin, TRC. Available pack sizes: 10mg, 25mg, 50mg, 100mg, 200mg, 1mg.