US Patent 11466158 Phthalocyanine dye compounds, conjugates and methods of use thereof

Disclosed herein are phthalocyanine dyes, and conjugates thereof, useful as fluorescent reporters for bioassays, for optical imaging and as therapeutic conjugates as the photosensitizing agents in light-based therapies including photoimmuno therapy (PIT). Certain phthalocyanine dyes disclosed herein are water soluble, and possess photophysical and photochemical profiles useful for use in imaging or therapy.