Supplier Page from Aladdin Scientific Corporation for N^a-Boc-N^w-(4-methoxy-2,3,6-trimethylphenylsulfonyl)-L-arginine
(1R,2R)-(+)-1,2-Diphenylethylenediamine from Aladdin Scientific Corporation
3-Chloro-2-methoxyphenylboronic acid (contains varying amounts of Anhydride) from Aladdin Scientific Corporation
4-Bromo-3-nitro-1H-pyrazole-5-carboxylic acid from Aladdin Scientific Corporation
6-Bromo-5,7-difluoroquinoline from Aladdin Scientific Corporation