Cy3, Cy5

Cy3 and Cy5 are fluorescent dyes used in biological research to label molecules like DNA or proteins. Cy3 emits green-orange light when excited by specific wavelengths, while Cy5 emits red light. These dyes help scientists visualize and track biological processes under a microscope or in experiments, allowing for precise observation of molecules' locations and interactions. Their different colors enable simultaneous detection of multiple targets, making them valuable tools in technologies like DNA sequencing and gene expression analysis.