CAS 69271-98-3 appears in our catalog under these names: Bis((2,3,5,6,8,9,11,12-octahydrobenzo[b][1,4,7,10,13]pentaoxacyclopentadecin-15-yl)methyl) heptanedioate, 98%, 98%, Bis(benzo-15-crown-5). Offered by: Chemat, MedChemExpress. Available pack sizes: 5mg, 25mg, 50mg, 10 mg, 50 mg, 1 mg, 5 mg, 25 mg.