D & C Red no. 27

Formula : C20-H4-Br4-Cl4-O5
CAS : 13473-26-2 

A red fluorescein dye used as a histologic stain. It may be cytotoxic, mutagenic, and inhibit certain mitochondrial functions.

D 00607

Formula :
CAS : 75923-49-8 

Yellow polymeric dye consisting of of an aminonitrobenzenesulfonic acid chromophore covalently linked to an acetylated polyaminoethylene backbone.