Dimethylolurea (CAS 140-95-4) is a fascinating molecule whose utility stems directly from its unique chemical structure and reactivity. As a derivative of urea and formaldehyde, it sits at the intersection of several important chemical pathways, making it a valuable intermediate in various industrial applications. Understanding its chemistry is key to appreciating its broad impact.

The molecular formula of Dimethylolurea is C3H8N2O3, with a molecular weight of approximately 120.11 g/mol. The defining characteristic of Dimethylolurea is the presence of two hydroxymethyl (-CH2OH) groups attached to the nitrogen atoms of the urea core. This structure can be represented as HOCH2NHCONHCH2OH. These hydroxymethyl groups are highly reactive, particularly in condensation reactions and as sources of formaldehyde. This inherent reactivity is the foundation for its widespread use.

One of the primary chemical behaviors of Dimethylolurea is its role as a formaldehyde releaser. Under specific conditions, such as heat or in the presence of certain catalysts, it can decompose to release formaldehyde. This property is harnessed in applications like textile finishing, where controlled formaldehyde release is used to cross-link polymer chains within fabrics, imparting wrinkle resistance and dimensional stability. This makes it an effective agent for enhancing fabric performance.

In addition to releasing formaldehyde, the hydroxymethyl groups themselves can participate in condensation reactions. They can react with other functional groups, such as hydroxyls, amines, or carboxyls, to form new covalent bonds. This is how Dimethylolurea contributes to the formation of cross-linked networks in resins and coatings. For instance, in the production of amino resins, it reacts with other formaldehyde-adducts or cross-linking agents to create durable, thermosetting polymers.

NINGBO INNO PHARMCHEM CO.,LTD. provides Dimethylolurea that is synthesized to meet specific industrial requirements, ensuring consistent chemical behavior. Whether you are interested in its properties for textile treatment, specialty coatings, or broader chemical synthesis, understanding its chemical nature is crucial. For companies looking to buy Dimethylolurea, knowing its reactivity helps in optimizing reaction conditions and product formulation.

The solubility of Dimethylolurea in hot water and its solid, white crystalline powder appearance are also important physical properties that influence its handling and application. Its melting point, typically around 125°C with decomposition, further dictates the processing parameters within industrial settings. The chemical understanding of Dimethylolurea underscores its importance as a versatile and reactive intermediate.