Amino PEG acids cat nr. Products n MW CAS 12137-2395 Amino PEG-23 acid 23 1146.4 06/04/2036 15137-1195 Fmoc-amino PEG-11 propionic acid 11 840.0 28/12/1952 15137-2490 Fmoc-amino PEG-23 propionic acid 23 1368.6 15137-2790 Fmoc-amino PEG-27 propionic acid 27 1544.8 09/02/2005 14137-2790 Boc-amino PEG-27 proprionic acid 27 1422.7