Microcrystalline Cellulose (MCC) is a naturally occurring cellulose polymer that is widely used as a filler, binder, and disintegrant in pharmaceutical and food industries. It is composed of small, uniformly sized particles that have a crystalline structure, and is produced by treating high-purity cellulose with mineral acids, followed by purification and spray drying.

MCC is a white, odorless, and tasteless powder that is insoluble in water and most organic solvents. It has excellent compressibility, which makes it a popular choice for tablet manufacturing, as it can be used to improve the flow and uniformity of the active ingredients in the tablet. MCC also has good binding properties, which help to hold the tablet together during manufacturing and transport.

In addition to its use in the pharmaceutical and food industries, MCC is also used in other applications, such as in the production of paper and cardboard, as well as in the construction and paint industries. MCC is generally considered to be safe for human consumption and is approved by regulatory agencies such as the FDA and EFSA.