Pyrrolidine

Pyrrolidine is a five-membered saturated heterocyclic organic compound with the molecular formula C4H9N and CAS number 123-75-1. This secondary amine features a nitrogen atom within its ring structure, giving it distinctive chemical properties. With a molecular weight of 71.12 g/mol, pyrrolidine serves as an important building block in organic synthesis and pharmaceutical chemistry, particularly valued for its nucleophilic properties and ability to form stable derivatives.

Pyrrolidine is a colorless liquid at room temperature with a characteristic amine-like odor, often described as fishy or ammonia-like. It is highly polar and completely miscible with water due to hydrogen bonding capabilities of its nitrogen atom. The compound is also soluble in most organic solvents including alcohols, ethers, and hydrocarbons. It has a relatively low boiling point and high vapor pressure, making it volatile under normal conditions.

Pyrrolidine is primarily used as an intermediate in pharmaceutical synthesis, serving as a precursor for various medications and active pharmaceutical ingredients. It finds application in the production of agrochemicals, particularly herbicides and pesticides. The compound is also utilized in organic synthesis as a building block for complex molecules, in the manufacture of specialty polymers, and as a catalyst or reagent in various chemical reactions requiring nucleophilic substitution.

Pyrrolidine requires careful handling with appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and adequate ventilation or respiratory protection. Work should be conducted in well-ventilated areas or under fume hoods to prevent inhalation of vapors. Avoid contact with skin, eyes, and clothing. Use non-sparking tools and equipment as the compound is flammable. Ensure proper grounding of containers during transfer operations to prevent static discharge.

Pyrrolidine should be stored in tightly sealed containers in a cool, dry, well-ventilated area away from heat sources, ignition sources, and direct sunlight. Keep containers in upright position and ensure compatibility of storage materials with the chemical. Store separately from oxidizing agents, acids, and other incompatible materials. Maintain storage temperature below 25°C when possible and implement appropriate fire prevention measures in the storage area.

Pyrrolidine contact requires immediate action: for skin contact, remove contaminated clothing and wash affected area thoroughly with soap and water for at least 15 minutes. In case of eye contact, flush immediately with clean water for 15 minutes while holding eyelids open. If inhaled, move person to fresh air and monitor breathing. For ingestion, do not induce vomiting and seek immediate medical attention. Always consult a physician after significant exposure.

Pyrrolidine disposal must comply with local, national, and European waste regulations as it is classified as hazardous waste. The compound should be collected in appropriate containers and disposed of through licensed waste management companies specialized in chemical waste treatment. Never pour down drains or release into the environment. Small quantities may be neutralized under controlled conditions by qualified personnel before proper disposal through approved incineration facilities.

Pyrrolidine is classified under ADR transport regulations as Class 3 (Flammable liquids), Packing Group II, indicating moderate danger level. It must be transported in UN-approved packaging suitable for flammable liquids with appropriate labeling and documentation. Vehicles must carry proper emergency equipment and drivers require ADR certification. Transport containers should be secured against movement and protected from heat sources during transit.

Pyrrolidine is subject to standard European chemical regulations including REACH registration requirements for manufacturers and importers. Under the CLP Regulation, it must be properly classified and labeled according to its hazard properties. The compound is not currently listed as a Substance of Very High Concern (SVHC) under REACH. Users must comply with occupational safety regulations and may need to implement risk management measures depending on usage quantities and applications.

Pyrrolidine is available through OYSI, a trusted European distributor of technical chemicals serving industrial and professional customers across Europe. OYSI provides high-quality pyrrolidine with proper documentation, safety data sheets, and regulatory compliance support. As a specialized chemical distributor, OYSI ensures reliable supply chains and technical expertise to support customer applications while maintaining strict quality and safety standards throughout the distribution process.