3-nitro-p-hydroethylaminophenol COLIPA N° B54
http://ec.europa.eu/health/ph_risk/committees/04_sccp/docs/sccp_o_083.pdf
HC Blue N°2 COLIPA N° B37
http://ec.europa.eu/health/ph_risk/committees/04_sccp/docs/sccp_o_084.pdf
Hydroxypropyl bis(n-Hydroxyethyl-p-Phenylenediamine) HCL COLIPA N° A121
http://ec.europa.eu/health/ph_risk/committees/04_sccp/docs/sccp_o_084.pdf