Supplier Page from Aladdin Scientific Corporation for Eriochrome Cyanine
2-Hydroxynicotinaldehyde from Aladdin Scientific Corporation
4-(4-Bromo-1H-pyrazol-1-yl)-N,N-diethylbenzenesulfonamide from Aladdin Scientific Corporation
Sebacic acid from Aladdin Scientific Corporation
Sodium iodide from Aladdin Scientific Corporation