Understanding CAS No. 111-55-7 A Closer Look at Pentanediol
CAS No. 111-55-7 refers to the chemical compound known as Pentanediol, specifically 1,5-Pentanediol. This diol is an organic compound that plays a significant role in various industrial applications due to its unique properties and versatility. In this article, we will delve into the characteristics, production methods, applications, and safety considerations associated with 1,5-Pentanediol.
Chemical Structure and Properties
Pentanediol is a straight-chain aliphatic diol with the molecular formula C5H12O2. Its structural formula features a five-carbon chain with hydroxyl (-OH) groups attached to the first and fifth carbon atoms. This arrangement gives Pentanediol distinct physical and chemical properties, making it useful in various formulations. It is typically a colorless, viscous liquid with a slightly sweet odor and can be soluble in water as well as a variety of organic solvents.
Production Methods
1,5-Pentanediol can be synthesized through various methods, with the most common being the hydrogenation of 1,5-pentanedione or the reduction of 1,5-pentanediol derivatives. The production process generally involves the use of catalysts and specific reaction conditions to yield high purity products. The growing demand for sustainable practices has led to interest in biosynthetic routes, for example, utilizing microorganisms to produce Pentanediol from renewable resources.
Applications
1. Cosmetics and Personal Care Products One of the leading applications of Pentanediol is in the cosmetic and personal care industry. It serves as a humectant, helping to retain moisture in formulations. Its skin-conditioning properties make it an attractive ingredient in creams, lotions, and other skincare products.
2. Industrial Applications Pentanediol is also utilized as a solvent in several industrial applications, including coatings, adhesives, and sealants. Its ability to dissolve various compounds while maintaining stability makes it an effective solvent for products ranging from paints to industrial cleaners.
cas no 111-55-7

3. Polymer Production In the field of polymer chemistry, Pentanediol is used in the production of polyurethanes and polyesters. It acts as a chain extender or a reactive diluent, significantly impacting the physical characteristics of the final product, such as flexibility and durability.
4. Pharmaceuticals The pharmaceutical industry has also found uses for Pentanediol. It serves as an intermediate in the synthesis of various pharmaceutical compounds and as a solvent for drug formulations. Its biocompatibility makes it suitable for use in certain medical applications.
5. Food Industry While not as common as in other sectors, Pentanediol has potential applications in the food industry as a flavoring agent and food preservative. However, such uses require adherence to strict regulatory guidelines.
Safety and Regulatory Considerations
As with many chemical compounds, safety is a paramount concern. Pentanediol is generally recognized as safe when used appropriately. However, exposure to high concentrations or prolonged contact can lead to skin irritation, respiratory issues, or other health concerns. Manufacturers and users must handle it with care, following the appropriate safety guidelines and regulatory requirements.
In many countries, Pentanediol is subjected to environmental regulations due to its potential impact on ecosystems. Proper waste disposal methods should be adhered to, ensuring that it does not enter waterways or harm wildlife.
Conclusion
In summary, CAS No. 111-55-7, or 1,5-Pentanediol, is a multifaceted compound with a broad spectrum of applications across industries, from cosmetics to pharmaceuticals. Its unique chemical properties facilitate its use as a solvent, a humectant, and a building block for various industrial products. Understanding its production methods, applications, and safety considerations is crucial for industries relying on this chemical. As sustainability continues to be a driving force, further advancements in the production and application of Pentanediol can be expected, making it a compound worth watching in the future.