MHI-148 is a tumor-targeting near-infrared heptamethylenecarbocyanine dye for the detection, diagnosis, and study of cancer.MHI-148 is taken up and accumulates in the lysosomes and mitochondria of tumor cells but is not taken up in the lysosomes and mitochondria of normal cells.MHI-148 is a tumor-targeting near-infrared heptamethylenecarbocyanine dye for the detection and diagnosis of cancer.