Supplier Page from Aladdin Scientific Corporation for 2-(Methylthio)phenol
1-(1H-indazol-4-yl)ethanone from Aladdin Scientific Corporation
DL-Mandelic acid from Aladdin Scientific Corporation
N-(4-Nitrophenyl)diethanolamine from Aladdin Scientific Corporation
N,N'-Di(1-naphthyl)benzidine (purified by sublimation) from Aladdin Scientific Corporation