Microcrystalline cellulose (C6H10O5)n is refined wood pulp. It is a white, free-flowing powder. Chemically, it is an inert substance, is not degraded during digestion and has no appreciable absorption. In large quantities it provides dietary bulk and may lead to a laxative effect.

Microcrystalline cellulose is a commonly used excipient in the pharmaceutical industry. It has excellent compressibility properties and is used in solid dose forms, such as tablets. Tablets can be formed that are hard, but dissolve quickly. Microcrystalline cellulose is the same as cellulose, except that it meets USP standards.

It is also found in many processed food products, and may be used as an anti-caking agent, stabilizer, texture modifier, or suspending agent among other uses. According to the Select Committee on GRAS Substances, microcrystalline cellulose is generally regarded as safe when used in normal quantities. 
 

1. A binder, a disintegrant for direct compression, and a food additive

2. It is widely used in pharmaceutical preparations, mainly as a diluent and a binder in oral tablets and capsules, and can be used not only for wet granulation but also for direct compression. There is also a certain degree of lubrication and disintegration, which is very useful in the preparation of tablets.

3. Microcrystalline cellulose PH101, suitable for all tableting methods, especially suitable for wet granulation, rotary tableting, and pelleting, with good compressibility.