Supplier Page from Aladdin Scientific Corporation for 1-Naphthylmalononitrile
1H-Pyrazole-4-sulfonyl chloride from Aladdin Scientific Corporation
2-Iodo-3-methylbenzoic acid from Aladdin Scientific Corporation
N,N'-Di(1-naphthyl)benzidine (purified by sublimation) from Aladdin Scientific Corporation
Sodium benzene-1,3-disulfonate from Aladdin Scientific Corporation