Supplier Page from Aladdin Scientific Corporation for 2-Bromo-5-hydroxybenzaldehyde
3-Nitro-1,2-phenylenediamine from Aladdin Scientific Corporation
4,6-Dichloro-N-methylpyridin-2-amine from Aladdin Scientific Corporation
N,N'-Di(1-naphthyl)benzidine (purified by sublimation) from Aladdin Scientific Corporation
Tripentaerythritol from Aladdin Scientific Corporation