Supplier Page from Aladdin Scientific Corporation for (+)-Catechin
3',6'-Bis(diethylamino)-2-(4-nitrophenyl)spiro[isoindole-1,9'-xanthene]-3-one from Aladdin Scientific Corporation
3-Bromophenylacetonitrile from Aladdin Scientific Corporation
4-bromo-2-chloro-pyridin-3-amine from Aladdin Scientific Corporation
Butyl 2,2-difluorocyclopropanecarboxylate from Aladdin Scientific Corporation