Supplier Page from Aladdin Scientific Corporation for 1-Benzylhydantoin
1H-Pyrazole-4-sulfonyl chloride from Aladdin Scientific Corporation
4-(Dimethylamino)phenyl isocyanate from Aladdin Scientific Corporation
N,N'-Di(1-naphthyl)benzidine (purified by sublimation) from Aladdin Scientific Corporation
tert-Butyl oxazol-4-ylcarbamate from Aladdin Scientific Corporation