A group of hydro-monobenzoporphyrins "green porphyrins" (Gp) having absorption maxima in the range of 670-780 nanometers is useful in treating disorders or conditions which are subject to hematoporphyrin derivative (HPD) treatment in the presence of light, or in treating virus, cells and tissues generally...http://www.google.es/patents/US5283255?utm_source=gb-gplus-sharePatente US5283255 - Wavelength-specific cytotoxic agents
