Supplier Page from Aladdin Scientific Corporation for 2,3-Dichloropyrazine
2,3-Dichlorobenzoyl chloride from Aladdin Scientific Corporation
3-Methyl-2-butanol from Aladdin Scientific Corporation
6-bromo-2-hydroxy-tetralin-2-carboxylic acid from Aladdin Scientific Corporation
N,N'-Di(1-naphthyl)benzidine (purified by sublimation) from Aladdin Scientific Corporation