Supplier Page from Aladdin Scientific Corporation for N,N'-Di(1-naphthyl)benzidine (purified by sublimation)
3-Bromophenylacetonitrile from Aladdin Scientific Corporation
4-Bromo-3-nitro-1H-pyrazole-5-carboxylic acid from Aladdin Scientific Corporation
N,N-Diethylmethylamine from Aladdin Scientific Corporation
t-Butyl 2-aminobenzenesulfonamide from Aladdin Scientific Corporation