Supplier Page from Aladdin Scientific Corporation for (R)-(+)-Propylene carbonate
1H-Pyrazole-4-sulfonyl chloride from Aladdin Scientific Corporation
Benzylideneacetone from Aladdin Scientific Corporation
N,N'-Di(1-naphthyl)benzidine (purified by sublimation) from Aladdin Scientific Corporation
tert-Butylhydrazine Hydrochloride from Aladdin Scientific Corporation