What color is Cy7?

Cy7 Color Details

Cy7, also known as Cyanine7, is a near-infrared fluorescent dye commonly used in various biological and medical imaging applications. Unlike colors visible to the human eye, Cy7's emission and absorption wavelengths are in the near-infrared spectrum, making it invisible to the naked eye.

The absorption maximum of Cy7 is typically around 750 nm, and its emission maximum is around 776 nm. This places Cy7's operational range well within the near-infrared region, which is advantageous for in vivo imaging due to lower background fluorescence and deeper tissue penetration compared to visible light.

Because Cy7 operates in the near-infrared spectrum, describing its color in conventional terms is not applicable. Instead, its 'color' is represented by its spectral properties, which are crucial for applications in biological research, medical diagnostics, and therapeutic interventions where high sensitivity and minimal background interference are required.