CAS 1323247-65-9 appears in our catalog under these names: Cephalexin Impurity 5, Cephalexin Impurity 11, Cefalexin Impurity 14, Cephalexin Diketopiperazine Monoacid (Mixture of Diastereomers), Cephalexin diketopiperazine monoacid. Offered by: Chemat Brand, Hubei YoungXin, TRC, Biosynth. Available pack sizes: on request, 10mg, 25mg, 50mg, 100mg, 200mg, 1mg, 5mg.