Ott . 14, 2024 07:39 Back to list

hydroxypropyl methyl cellulose cas number

Understanding Hydroxypropyl Methyl Cellulose CAS Number and Its Applications

Hydroxypropyl methyl cellulose (HPMC) is a versatile polymer widely used in various industries, including pharmaceuticals, food, cosmetics, and construction. With the Chemical Abstracts Service (CAS) number 9004-65-3, this cellulose derivative has garnered significant attention for its unique properties and functionalities.

What is Hydroxypropyl Methyl Cellulose?

HPMC is a modified form of cellulose, a natural polymer derived from plants. The modification involves the introduction of hydroxypropyl and methyl groups into the cellulose structure, enhancing its solubility and performance in different applications. HPMC is available in various viscosity grades and is typically produced by the alkaline treatment of cellulose, followed by etherification. This modification is crucial in determining its thermal gelation properties, water-holding capacity, and adhesion characteristics.

Properties and Characteristics

The unique properties of HPMC stem from its chemical structure. It is a white, odorless powder that is soluble in cold water, creating a clear, viscous solution. Some key characteristics include

1. Thickening Agent HPMC is widely used as a thickening agent in various formulations. It increases the viscosity of liquids without altering their composition.

2. Film-Forming Ability It can form a flexible film upon drying, which is particularly beneficial in coatings, adhesives, and some cosmetic formulations.

3. Stabilization HPMC acts as a stabilizer in emulsions and suspensions, preventing separation and improving the overall texture of products.

4. Controlled Release In pharmaceuticals, HPMC is utilized for its ability to control the release of drugs, allowing for sustained therapeutic effects over a prolonged period.

5. Biocompatibility Being derived from cellulose, HPMC is considered biocompatible and is often used in applications involving human interaction, such as pharmaceuticals and food additives.

hydroxypropyl methyl cellulose cas number

Applications Across Industries

HPMC’s versatility allows it to be utilized in various sectors

- Pharmaceuticals In pharmaceutical formulations, HPMC is primarily used in tablets and capsules as a binder and a disintegrant. It ensures that active ingredients are released in a controlled manner, enhancing bioavailability. Additionally, it is used in ophthalmic solutions due to its viscosity and moisture-retaining properties.

- Food Industry HPMC serves as a food additive, primarily as a thickening agent and emulsifier. It is found in sauces, dressings, and baked goods, contributing to texture and stability.

- Construction In construction, HPMC is incorporated into cement and gypsum products as a water-retention agent, improving workability and adhesion. It also enhances the mechanical properties of mortar and plaster.

- Cosmetics and Personal Care In cosmetic formulations, HPMC functions as a thickener, stabilizer, and emulsifier. It is frequently used in products like shampoos, lotions, and cream foundations for its ability to improve texture and product stability.

Safety and Regulatory Aspects

HPMC is generally recognized as safe (GRAS) by the U.S. Food and Drug Administration (FDA) and is approved for use in food products, pharmaceuticals, and cosmetics. However, as with any substance, it is essential to adhere to recommended guidelines and usage levels to ensure consumer safety.

Conclusion

Hydroxypropyl methyl cellulose, identified by its CAS number 9004-65-3, is a multifunctional polymer with a broad range of applications across industries. Its unique properties enable enhanced performance in formulations, making it a valuable additive in pharmaceuticals, food, construction, and personal care products. As industries continue to evolve and seek more effective solutions, the role of HPMC is likely to expand, affirming its importance in modern formulations and products. Whether enhancing drug release in pharmaceuticals or improving texture in food products, HPMC stands out as a key ingredient in the formulation toolkit.

Exploring Diverse Applications of Hydroxypropyl Methylcellulose in Various Industries