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Fenbufen: Material Overview and Characteristics

What is Fenbufen?

Fenbufen stands out as a non-steroidal anti-inflammatory drug, often showing up as a raw material in pharmaceutical formulations. Known by its molecular formula C16H14O3, Fenbufen carries the systematic name 4-biphenylacetic acid, 4-(2-methyl-1-oxo-2-propenyl)-, an essential identifier for regulatory filings and lab documentation. It commonly presents itself as a white to off-white crystalline powder, rarely producing much odor, and this physical purity supports accurate dosing and reproducible blending during large-scale tableting or encapsulation production runs.

Product Structure, Physical Properties, and Density

Chemists can draw Fenbufen’s molecular structure as a biphenyl core condensed with an acetic acid side chain, decorated with a methyl and ketone group that shapes its pharmacological action. The melting point settles within 208–210°C, a solid mark for thermal stability under typical storage and processing environments. Density numbers usually land close to 1.24 g/cm³, measured at 20°C, giving researchers a reliable value for batching and bulk transfers. Fenbufen shows low solubility in water but dissolves well in most organic solvents, including chloroform and ethanol, supporting both analytical and preparative workflows in R&D and production labs. Bulk shipments frequently arrive as flakes or powder, slip-sealed against light and air to preserve integrity throughout global distribution chains.

HS Code and Regulatory Significance

Shipping Fenbufen across borders calls for attention to regulatory details. Most customs documents feature Harmonized System (HS) Code 2934.99, encompassing synthetic organic chemicals with similar naphthalene or pyridine skeletons. This detail streamlines customs clearance, tracking, and compliance with national chemical safety standards. As regulations update to reflect emerging hazards or supply chain disruptions, staying current with the HS Code for Fenbufen ensures faster access and better stock management. This point matters deeply for procurement teams under pressure to cut lead times, a common challenge for pharmaceutical manufacturers and scientific suppliers working with tight production schedules.

Material Forms: Flakes, Powder, Pearls, Solid, and Crystal

Fenbufen’s commercial reach comes from its adaptability in form. Powder versions lend themselves well to rapid dispersion in tablet blending, while flakes or fine crystals improve uniform mixing and flow in high-speed machinery. No matter the format—solid, pearls, crystalline powder—the substance stays stable under standard shipping and storage, provided humidity and temperature remain controlled. Many production lines use powders for consistent metering by feeders or mixers. Working with solid cake or crystalline lumps often requires extra time for grinding or sieving, introducing more room for error. It’s not just a preference; it’s a direct factor in production efficiency and finished batch quality.

Chemical Safety: Handling, Storage, and Hazards

Any team dealing with Fenbufen needs a sharp eye for chemical safety. Classified as hazardous by many national regulatory bodies, Fenbufen warrants careful handling—skin contact, inhalation, or ingestion pose direct health risks. Dust forms cause respiratory irritation, especially during weighing, transferring, and cleaning processes. Storage calls for cool, dry spaces with solid ventilation and access controls to prevent accidental exposures. Packaging includes warning labels in line with GHS (Globally Harmonized System) and often highlights its harmful potential if mishandled. Safety protocols require glove and eye protection, spill management drills, and regular risk assessment for anyone staying close to production or raw material storage. None of this is theoretical—worker safety, liability, and operational stability tie directly to these choices every day.

Molecular Properties and Analytical Details

Fenbufen weighs in at a molecular mass of 254.28 g/mol, offering a consistent measure for accurate batch calculations in bulk and small-scale preparations. The structure, decorated with phenyl rings, influences both its pharmacological effect and the challenges faced during synthesis or purification. Analytical chemists run IR, NMR, and LC-MS to confirm product identity and monitor for impurities, though product integrity depends heavily on raw material traceability and batch documentation. That high level of analytical detail holds growing importance as regulations tighten and audits ramp up, both in established and emerging pharmaceutical markets.

Raw Material Supply and Industry Applications

Access to high-purity Fenbufen matters for any drug manufacturer seeking regulatory approval for finished pharmaceuticals targeting inflammation or pain relief. Global supply chains often weave through China, India, and Europe, each node facing its own compliance requirements, pricing policies, and shipping challenges. Without consistent raw material quality, companies endure delays, batch failures, and recalls—expensive setbacks under tight deadlines. Quality assurance teams require reliable COAs (Certificates of Analysis), real-time traceability data, and robust vendor relationships to keep supply steady and trustworthy. As pharmaceutical oversight tightens, firms investing early in their sourcing and documentation stand better positioned for long-term survival. The choices made upstream ripple through finished doses, regulatory filings, and, ultimately, patient safety.