CAS 1128304-86-8 appears in our catalog under these names: Macropa, Macropa 95%, 6,6′-[1,4,10,13-Tetraoxa-7,16-diazacyclooctadecane-7,16-diylbis(methylene)]bis[2-pyridinecarboxylic acid], 95%, 95%. Offered by: GLPBio, Ambeed, Chemat. Available pack sizes: 10mg, 100mg, 25mg, 5mg, 50mg, 250mg, 1g, 5g.