Fluorescent and/or chromogenic reagents in which a phthalocyanine derivative is monomerically conjugated with an antigen, antibody, oligonucleotide, or nucleic acid. Methods are presented in in which greater than 90% of the phthalocyanine dyes are monomeric when conjugated. This greatly enhances their...http://www.google.es/patents/US5494793?utm_source=gb-gplus-sharePatente US5494793 - Monomeric phthalocyanine reagents
