Pentanedial

Pentanedial is a linear aliphatic dialdehyde with the molecular formula C5H8O2 and CAS number 111-30-8. It consists of a five-carbon chain with aldehyde groups at both ends, giving it the systematic name glutaraldehyde. With a molecular weight of 100.12 g/mol, this compound is classified as highly hazardous with multiple safety concerns including acute toxicity, skin corrosion, and respiratory sensitization properties.

Pentanedial is typically a colorless to pale yellow liquid with a pungent, acrid odor at room temperature. It is highly soluble in water and polar organic solvents due to its aldehyde functional groups. The compound has a tendency to polymerize in aqueous solutions, forming cyclic hemiacetals and other oligomeric structures. Its reactive nature makes it unstable in certain conditions, requiring careful handling and storage.

Pentanedial is primarily used as a disinfectant and sterilizing agent in healthcare settings due to its potent antimicrobial properties. It serves as a cross-linking agent in protein and enzyme immobilization, leather tanning processes, and as a fixative in electron microscopy. Industrial applications include use as a biocide in water treatment systems and as an intermediate in pharmaceutical and chemical synthesis processes.

Pentanedial requires extensive personal protective equipment including chemical-resistant gloves, safety goggles, and respiratory protection due to its corrosive and sensitizing properties. Work must be conducted in well-ventilated areas or under fume hoods to prevent inhalation exposure. Given its Acute Tox. 2 classification and respiratory sensitization potential, minimize skin contact and vapor exposure. Use appropriate spill containment materials and ensure emergency eyewash stations are readily accessible.

Pentanedial must be stored in tightly sealed containers in cool, dry, well-ventilated areas away from heat sources and incompatible materials. Keep containers in secondary containment due to its corrosive nature (Skin Corr. 1B classification). Avoid storage near bases, strong oxidizers, and reactive metals. Maintain storage temperatures below 25°C to prevent decomposition and polymerization. Ensure storage areas have appropriate spill control measures and restricted access.

Immediate action is critical due to pentanedial's corrosive properties. For skin contact, remove contaminated clothing and flush affected areas with copious amounts of water for at least 15 minutes. If inhaled, move to fresh air immediately and seek medical attention due to respiratory sensitization risks. For eye contact, rinse thoroughly with water for at least 15 minutes and remove contact lenses if present. Seek immediate medical attention for all exposure routes.

Pentanedial waste must be disposed of as hazardous chemical waste through licensed waste management companies in compliance with local and EU regulations. The substance cannot be discharged to sewers or waterways due to its aquatic toxicity classification. Neutralization may be possible under controlled conditions by trained personnel, but typically requires professional hazardous waste disposal. Empty containers should also be treated as hazardous waste due to residual contamination risks.

Pentanedial is classified as ADR Class 8 (corrosive substances), Packing Group II, requiring specialized packaging and documentation for transport. Shipments must use UN-approved packaging with appropriate hazard labels including corrosive placards. Transport vehicles need proper segregation from incompatible materials and emergency response information. Professional carriers experienced in hazardous chemical transport should handle shipments, ensuring compliance with international dangerous goods regulations.

Pentanedial is regulated under multiple EU frameworks including CLP regulation due to its hazard classification and REACH regulation for chemical safety. Its respiratory sensitization properties (Resp. Sens. 1) may trigger workplace exposure limits and occupational health surveillance requirements. While not currently listed as SVHC, its hazardous properties require strict compliance with industrial emissions directives and worker protection regulations across EU member states.

Pentanedial is available through OYSI, a European distributor specializing in technical chemical products. OYSI provides reliable supply chains across Europe with proper hazardous material handling and regulatory compliance documentation. Given the substance's hazardous classification requiring specialized transport and handling, professional suppliers like OYSI ensure appropriate packaging, safety data sheets, and regulatory compliance for industrial and research applications throughout European markets.