CAS 61337-68-6 appears in our catalog under these names: Mirtazapine EP Impurity D, Mirtazapine Impurity 4（Mirtazapine EP Impurity D）, (14bRS)-1,2,3,4,10,14b-Hexahydropyrazino(2,1-a)pyrido(2,3-c)(2)benzazepine (Desmethylmirtazapine), N-desmethylmirtazapine/ 99.97% (existing batch purity), N-desmethylmirtazapine. Offered by: Chemat Brand, Hubei YoungXin, Mikromol, TargetMol, Chemat. Available pack sizes: on request, 10mg, 25mg, 50mg, 100mg, 200mg, 1mg, 5mg.