Supplier Page from Aladdin Scientific Corporation for 2-Amino-1-(2,3-dimethylphenyl)pyrrolo[3,2-b]quinoxaline-3-carbonitrile
3-methyl-1H-1,2,4-triazole from Aladdin Scientific Corporation
6-Iodonicotinonitrile from Aladdin Scientific Corporation
Methyl 5-(Hydroxymethyl)-1H-imidazole-4-carboxylate from Aladdin Scientific Corporation
N,N'-Di(1-naphthyl)benzidine (purified by sublimation) from Aladdin Scientific Corporation