That mix will be about 90% absorber dyes and 10% sensitizing dyes, if that. The sensitizing dyes were designed to stick to the grains and that is why some films end up pink! The dyes (some of them) come out slowly or in the fix or final wash.

Other things present in the pre-wet are tetra-aza-indede or similar compounds, metal complexes (very low concentration), antifoggants and surfactants.