The document is a material safety data sheet for Fluorescent DII Based Liposomes in Phosphate Buffered Saline produced by Encapsula Nanosciences LLC. It lists the product and company identification, composition, hazards identification, first aid measures, fire fighting measures, accidental release measures, and other handling and safety information. The main components are water, sodium chloride, potassium chloride, and lipids including phosphatidylcholine and cholesterol that make up the liposome nanoparticles.