Supplier Page from Aladdin Scientific Corporation for (2R)-2-methyl-5-oxopyrrolidine-2-carboxylic acid
2,4-Difluorobenzenesulfonamide from Aladdin Scientific Corporation
2-Hydroxynicotinaldehyde from Aladdin Scientific Corporation
3-Chloro-2-methoxyphenylboronic acid (contains varying amounts of Anhydride) from Aladdin Scientific Corporation
Propargyl bromide from Aladdin Scientific Corporation