Supplier Page from Aladdin Scientific Corporation for 2-Bromo-4-nitrobenzoic Acid
2-Hydroxyimino-2-phenylacetonitrile, mixture of syn and anti from Aladdin Scientific Corporation
3,6-Diphenyl-2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione from Aladdin Scientific Corporation
Bismuth sulfate from Aladdin Scientific Corporation
N,N'-Di(1-naphthyl)benzidine (purified by sublimation) from Aladdin Scientific Corporation