Supplier Page from Aladdin Scientific Corporation for 2-(4-isopropylphenyl)-2-methylpropan-1-ol
2,5-Dichlorosulfanilic Acid from Aladdin Scientific Corporation
4-Ethoxybenzoic Acid Ethyl Ester from Aladdin Scientific Corporation
N,N'-Di(1-naphthyl)benzidine (purified by sublimation) from Aladdin Scientific Corporation
N,N'-Di-2-naphthyl-1,4-phenylenediamine from Aladdin Scientific Corporation