Supplier Page from Aladdin Scientific Corporation for 2,4-Dimethylphenol solution
2,2-Dimethyl-1,3-dioxacyclohept-5-ene from Aladdin Scientific Corporation
3-Bromo-4-chloroaniline from Aladdin Scientific Corporation
5-(2-Ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]-7-pyrimidinone from Aladdin Scientific Corporation
N,N'-Di(1-naphthyl)benzidine (purified by sublimation) from Aladdin Scientific Corporation