Supplier Page from Aladdin Scientific Corporation for α,ω-Bis{2-[(3-carboxy-1-oxopropyl)amino]ethyl}polyethylene glycol
6-Bromo-5,7-difluoroquinoline from Aladdin Scientific Corporation
Butyl 2,2-difluorocyclopropanecarboxylate from Aladdin Scientific Corporation
D-Glutamic acid from Aladdin Scientific Corporation
Tetryzoline from Aladdin Scientific Corporation