2-chlorobenzaldehyde

2-chlorobenzaldehyde is an aromatic aldehyde compound with the molecular formula C7H5ClO and CAS number 89-98-5. This organic chemical features a benzene ring substituted with both a chlorine atom and an aldehyde functional group in the ortho position. With a molecular weight of 140.56 g/mol, it is classified as a corrosive substance (Skin Corr. 1B) requiring careful handling due to its hazardous properties.

2-chlorobenzaldehyde is typically a colorless to pale yellow liquid at room temperature with a characteristic aromatic aldehyde odor. The compound has a molecular weight of 140.56 g/mol and contains both electron-withdrawing chlorine and aldehyde groups that influence its reactivity. It exhibits limited solubility in water but dissolves readily in organic solvents such as ethanol, ether, and benzene, making it suitable for various organic synthesis applications.

2-chlorobenzaldehyde serves as an important intermediate in organic synthesis and pharmaceutical manufacturing. It is commonly used in the production of various chemical compounds including pharmaceuticals, agrochemicals, and specialty chemicals. The compound acts as a building block for synthesizing more complex molecules, particularly in the development of medicinal compounds and fine chemicals. Its aldehyde functionality makes it valuable for condensation reactions and other organic transformations in industrial processes.

2-chlorobenzaldehyde requires careful handling due to its corrosive properties (Skin Corr. 1B classification). Essential personal protective equipment includes chemical-resistant gloves, safety goggles, and protective clothing to prevent skin and eye contact. Work should be conducted in well-ventilated areas or under fume hoods to avoid inhalation exposure. The GHS05 pictogram indicates corrosive hazards, requiring immediate attention to prevent serious skin and eye damage upon contact.

2-chlorobenzaldehyde should be stored in tightly sealed containers in a cool, dry, and well-ventilated area away from heat sources and direct sunlight. As a corrosive substance, it must be kept separate from incompatible materials such as strong bases, oxidizing agents, and metals. Storage containers should be made of compatible materials resistant to corrosion. Regular inspection of containers is essential to prevent leaks and ensure proper containment of this hazardous chemical.

Immediate action is critical due to 2-chlorobenzaldehyde's corrosive nature. For skin contact, immediately remove contaminated clothing and flush the affected area with plenty of water for at least 15 minutes. In case of eye contact, rinse immediately with water for at least 15 minutes and seek medical attention. If inhaled, move the person to fresh air and seek medical help if breathing difficulties occur. Always consult a physician after any significant exposure.

2-chlorobenzaldehyde must be disposed of as hazardous waste according to local and national regulations. The substance cannot be discharged into sewers or the environment due to its corrosive and potentially harmful properties. Disposal should only be carried out by licensed waste management companies specializing in hazardous chemical waste. Containers must be properly labeled and handled according to waste classification requirements to ensure environmental protection and regulatory compliance.

2-chlorobenzaldehyde is classified under ADR Class 8 (corrosive substances), Packing Group III for transportation purposes. This classification requires specific packaging, labeling, and documentation for safe transport. Vehicles must display appropriate hazard placards, and drivers need ADR certification for transporting corrosive materials. Proper packaging must meet UN specifications for corrosive substances, ensuring secure containment during transit and compliance with international dangerous goods regulations.

2-chlorobenzaldehyde is subject to various chemical regulations including REACH registration requirements in Europe and CLP classification as a corrosive substance (Skin Corr. 1B). The compound is not currently listed as a Substance of Very High Concern (SVHC) under REACH. However, its corrosive classification requires compliance with occupational safety standards, proper labeling with GHS05 pictograms, and adherence to workplace exposure limits where established by local authorities.

2-chlorobenzaldehyde is available through OYSI, a specialized European distributor of chemical products serving industrial and research customers across Europe. As an established chemical distributor, OYSI provides this compound with proper documentation, safety data sheets, and regulatory compliance support. Professional customers can obtain detailed product information, availability, and technical support through OYSI's distribution network, ensuring reliable supply for their chemical synthesis and manufacturing requirements.