Polyethylene Glycol 4000 (PEG 4000) is a versatile polymer with a unique set of chemical properties that make it an invaluable excipient in the pharmaceutical industry. NINGBO INNO PHARMCHEM CO.,LTD. provides insight into the chemistry behind PEG 4000, explaining how these characteristics translate into tangible benefits for drug formulation and manufacturing. Understanding these properties is key to unlocking the full potential of this essential compound.

Chemically, PEG 4000 is a polyether, characterized by the repeating unit -(OCH2CH2)-. Its structure, with terminal hydroxyl groups, makes it hydrophilic and highly soluble in water and many organic solvents. This solubility is fundamental to its use in various dosage forms, from aqueous solutions to semi-solid formulations. The molecular weight of approximately 4000 g/mol contributes to its solid, waxy, or flaky physical state at room temperature, distinguishing it from lower molecular weight PEGs that are liquids.

The chemical reactivity of PEG 4000 is primarily associated with its terminal hydroxyl groups, which can undergo esterification or etherification. However, in most pharmaceutical applications, it acts as a relatively inert component, serving as a binder, lubricant, dispersant, or base. Its low toxicity profile and biocompatibility further enhance its appeal. For those aiming to buy polyethylene glycol 4000, these properties ensure it can be safely incorporated into a wide range of products.

The performance of PEG 4000 in tablet manufacturing is directly linked to its physical and chemical characteristics. As a binder, its polymer chains entwine with API particles, providing cohesive strength to the tablet. Its lubricating action is due to the slippery nature of the polymer chains reducing inter-particle friction. The uses of polyethylene glycol 4000 are further expanded by its ability to modify the viscosity and texture of semi-solid formulations.

NINGBO INNO PHARMCHEM CO.,LTD. understands that consistent quality is paramount when dealing with pharmaceutical grade PEG 4000. By adhering to strict manufacturing standards and quality control, they ensure that the chemical properties of their PEG 4000 meet the demanding requirements of the pharmaceutical industry. When considering the polyethylene glycol 4000 price, remember that it reflects the rigorous purification and testing required for pharmaceutical applications. Partnering with reliable PEG 4000 manufacturers like NINGBO INNO PHARMCHEM CO.,LTD. guarantees access to material with the precise chemical characteristics needed for successful drug development.