Supplier Page from Aladdin Scientific Corporation for proinsulin C-peptide
2-oxa-5,8-diazaspiro[3.5]nonane dihydrochloride from Aladdin Scientific Corporation
4-(1H-Pyrazol-1-ylsulfonyl)phenylboronic acid from Aladdin Scientific Corporation
6-Bromo-5,7-difluoroquinoline from Aladdin Scientific Corporation
Zinc iodide from Aladdin Scientific Corporation