CAS 1221189-11-2 appears in our catalog under these names: Methyl-o-nitropiperonyllysine, mNPK 97%, (2S)-2-Amino-6-(((1-(6-nitrobenzo[d][1,3]dioxol-5-yl)ethoxy)carbonyl)amino)hexanoic acid, 95%, 95%. Offered by: Biosynth, Ambeed, Chemat. Available pack sizes: 5mg, 10mg, 25mg, 100mg, 50mg, 250mg, 1g.