1,4,8,11-Tetraazacyclotetradecane-1,8-diacetic acid,5,5,7,12,12,14-hexamethyl-, diethyl ester
CAS No. 397860-39-8
Z-NH-PEG5-CH2COOH 1449390-66-2
TETRAXAN 8073-35-6