Supplier Page from Aladdin Scientific Corporation for 2-Acetoxy-4'-hexyloxybenzophenone
4-Bromo-1,2-diaminobenzene from Aladdin Scientific Corporation
6-Amino-2-naphthalenesulfonic Acid from Aladdin Scientific Corporation
N-(4-Nitrophenyl)-3-oxobutyramide from Aladdin Scientific Corporation
N,N'-Di(1-naphthyl)benzidine (purified by sublimation) from Aladdin Scientific Corporation