👉 Octadecahydrate is a molecule that has a molecular formula of C10H12O3 and is composed of three carbon atoms bonded to two hydrogen atoms. Octadecahydrate is often used in pharmaceutical applications as a preservative, because it can stabilize the pH levels of food products and other substances when dissolved in water or buffered solutions. Octadecahydrate is also known as hydroxypropylmethylcellulose (HPMC
