Supplier Page from Aladdin Scientific Corporation for L-Proline p-nitroanilide trifluoroacetate salt
3-cyano-1H-indole-7-carboxylic acid from Aladdin Scientific Corporation
4-Bromo-1,2-diaminobenzene from Aladdin Scientific Corporation
ethyl 4-hydroxy-2-oxo-1,2-dihydroquinoline-3-carboxylate from Aladdin Scientific Corporation
Zinc iodide from Aladdin Scientific Corporation