Cellulose acetate is a synthetic compound derived from cellulose, a natural polymer found in plant cell walls. It is created by treating cellulose with acetic anhydride or acetic acid, which modifies its structure. This material is known for its transparency, flexibility, and resistance to moisture, making it useful in various applications. Commonly used in the production of photographic film, coatings, and fibers, cellulose acetate is also a popular choice for making eyeglass frames and plastic products. It is biodegradable, which makes it a more environmentally friendly alternative to some other plastics, although its degradation process can still take time.