Our company has completed the improvement  of  resolution and product expansion of “DL-2-Amino-1-butanol(CAS No.13054-87-0), we have supplied highly purified “ (R)-(-)-2-Amino-1-butanol” (CAS No. 5856-63-3) and “D-(+)-2 Amino-1-butanol (CAS No. 5856-62-2) stably from Sep, 2013.