Supplier Page from Aladdin Scientific Corporation for 2,4-Quinolinediol
3-(Methylamino)propionic acid from Aladdin Scientific Corporation
4-Amino-2,3-difluorobenzonitrile from Aladdin Scientific Corporation
N,N'-Di(1-naphthyl)benzidine (purified by sublimation) from Aladdin Scientific Corporation
Potassium stearate from Aladdin Scientific Corporation