Supplier Page from Aladdin Scientific Corporation for δ-HCH solution
4-(Dimethylamino)phenyl isocyanate from Aladdin Scientific Corporation
4,6-Dichloro-N-methylpyridin-2-amine from Aladdin Scientific Corporation
EDTA disodium salt from Aladdin Scientific Corporation
p-Tolyl chloroformate from Aladdin Scientific Corporation