CAS 2168557-86-4 appears in our catalog under these names: 1-(Aminomethyl)cyclobutane-1,3-diol, 95%, 1-(Aminomethyl)cyclobutane-1,3-diol, 97%, 97%, 1-(aminomethyl)cyclobutane-1,3-diol, 97%. Offered by: AmBeed, Chemat, Fluorochem. Available pack sizes: 1g, 250mg, 100mg, 500mg.