1,3-Propanediol, 2-methylene- is a distinct chemical compound recognized for its unique molecular framework and reactive groups. This organic raw material appears under the molecular formula C4H8O2, featuring a methylene group attached to the central carbon atom in a three-carbon backbone structure. Commonly found in several forms, this compound serves as a foundational ingredient in the synthesis of specialty polymers and resins. The structural versatility opens doors across industrial sectors, including plastics, coatings, and adhesive applications. Knowing its molecular arrangement, with double bonds and two hydroxyl groups, underscores its keen reactivity—a factor considered essential during storage, usage, and handling in any manufacturing process.
Producers and chemists encounter 1,3-Propanediol, 2-methylene- in several physical forms based on temperature and purity. At room temperature, this compound can exist as a viscous liquid, yet solidifies into a crystal-like material in colder conditions. Powder and pearl-shaped granules form when it undergoes specific crystallization or dehydration processes. In its pure liquid state, the material remains colorless and transparent, exuding a faint, nearly undetectable odor. When crystallized, its solid state takes on the appearance of fine, white flakes or powder. Many factors influence which material state appears, such as ambient temperature and the concentration of solution. The flexibility in its physical forms supports a range of production needs, from large-scale polymer synthesis to targeted lab research requiring controlled reactivity and solubility.
Molecular analysis defines 1,3-Propanediol, 2-methylene- as an unsaturated diol featuring a vinyl group at one terminal end. Such structural attributes make the compound particularly interesting for chemists interested in crosslinking or further modification. Its molecular mass hovers around 88.11 g/mol, and the density, depending on temperature and concentration, typically measures near 1.08 g/cm³. Purity standards fluctuate between suppliers, though most industrial grades boast purities above 98%. Clear labeling on every drum or container displays not only identity but also the HS Code for international transport, which most often registers under 290539. The density and boiling point (in the neighborhood of 190°C at standard atmospheric pressure) play big roles in processing and storing the compound, especially in settings where containment and temperature regulation carry weight for lab safety.
This molecule can act as both a building block and a reactive intermediate, which brings an intersection between innovation and risk. Inhalation or skin exposure may cause irritation, so gloves and protective eyewear remain standard procedure during handling. The compound’s volatility means proper ventilation and spill control measures can prevent workplace incidents. Shipping and storage demand tightly-sealed containers away from UV light and heat sources. Flammability ratings classify it as a moderate risk, with documentation detailing flash points and reactivity. Regulatory bodies like OSHA and ECHA offer guidelines for proper labeling and workplace safety—clarifying how small quantities handled diligently rarely lead to problems, but bulk storage without oversight heightens risk. This calls for transparent education and regular safety training to minimize accidents and ensure the workforce understands both the chemical’s opportunity and its hazard profile.
Businesses look to 1,3-Propanediol, 2-methylene- mostly for its function as a monomer in the creation of specialty polyester resins. This process depends on the purity and density of the starting material, because contamination or excessive moisture can affect final product quality. End-users in the plastics industry praise this molecule for bringing strength and durability to finished components, without the toxicity concerns of some older alternatives. On a personal note, keeping up with technological shifts in materials science, one often sees products based on this compound marketed for their performance under stress or exposure. For those focused on sustainability, sourcing this raw material through greener processes has picked up momentum, and I’ve noticed several global suppliers investing in renewable feedstocks and cleaner production routes to help reduce environmental impact. This shift toward safer, eco-conscious chemistry not only safeguards health and environment but also aligns with the tightening standards from global regulators and brand-conscious consumers.
To sum up, this chemical sits in HS Code 290539, chemical formula C4H8O2, molecular weight near 88.11 g/mol, and density close to 1.08 g/cm³. Available in solid (crystals, flakes, powder, pearls) and liquid forms, it blends versatility with inherent reactivity. Specific gravity and melting point are charted in most data sheets, along with warnings for proper storage and hazard details for safe use as mandated by international chemical safety conventions. Every batch intended for manufacturing or export comes with a certificate of analysis, safety data sheet, and packaging information specifying net and gross weights, batch codes, and recommended disposal procedures. With all this information shared transparently, both industrial buyers and safety authorities have the tools needed to handle, apply, and regulate this chemical for broad benefit with minimized risk.
Providing high-quality chemical products and logistics solutions for global trade partners.
