Supplier Page from Aladdin Scientific Corporation for 2-Amino-4-(4-butylphenyl)thiophene-3-carbonitrile
2-oxaspiro[3.5]nonan-6-one from Aladdin Scientific Corporation
5-Bromobenzo[b]naphtho[1,2-d]thiophene from Aladdin Scientific Corporation
Metol from Aladdin Scientific Corporation
N,N'-Di(1-naphthyl)benzidine (purified by sublimation) from Aladdin Scientific Corporation