Supplier Page from Aladdin Scientific Corporation for β-endorphin
3,6-Diphenyl-2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione from Aladdin Scientific Corporation
3-Bromophenylacetonitrile from Aladdin Scientific Corporation
3'-Fluoro-4'-hydroxyacetophenone from Aladdin Scientific Corporation
Dibenzofuran-1-boronic Acid (contains varying amounts of Anhydride) from Aladdin Scientific Corporation