Supplier Page from Aladdin Scientific Corporation for (2,3-dimethoxybenzyl)methylamine
2-(3-Chloropropoxy)tetrahydro-2H-pyran from Aladdin Scientific Corporation
Diphenylamine（DPA） from Aladdin Scientific Corporation
N,N'-Di(1-naphthyl)benzidine (purified by sublimation) from Aladdin Scientific Corporation
Phenylpropargyl aldehyde diethyl acetal from Aladdin Scientific Corporation