(Z)-but-2-enedioic acid

(Z)-but-2-enedioic acid is a dicarboxylic acid compound with the molecular formula C4H4O4 and CAS number 110-16-7. Also known as maleic acid, it features a cis-configuration double bond between the two carbon atoms. With a molecular weight of 116.07 g/mol, this organic compound is classified as a hazardous substance requiring proper handling due to its irritant and sensitizing properties.

(Z)-but-2-enedioic acid appears as white crystalline solid at room temperature with high water solubility. The compound has a molecular weight of 116.07 g/mol and contains two carboxylic acid groups. It exhibits acidic properties due to its dicarboxylic nature and shows good solubility in polar solvents. The cis-configuration of the double bond makes it more reactive than its trans-isomer, fumaric acid.

(Z)-but-2-enedioic acid serves as an important industrial intermediate in chemical synthesis and polymer production. It is widely used in manufacturing unsaturated polyester resins, alkyd resins, and as a curing agent for epoxy resins. The compound also finds applications in food industry as an acidulant, in pharmaceutical synthesis, and as a building block for various chemical reactions requiring dicarboxylic acid functionality.

(Z)-but-2-enedioic acid requires careful handling with appropriate personal protective equipment including safety goggles, chemical-resistant gloves, and protective clothing. Work in well-ventilated areas to avoid inhalation exposure. The compound can cause skin and eye irritation and may cause skin sensitization. Avoid direct contact with skin and eyes, and prevent dust formation during handling. Always follow good industrial hygiene practices.

(Z)-but-2-enedioic acid should be stored in a cool, dry, well-ventilated area away from heat sources and incompatible materials. Keep containers tightly closed and protect from moisture to prevent degradation. Store away from strong bases, oxidizing agents, and reducing agents. Use appropriate containment to prevent environmental release and ensure storage areas are equipped with suitable fire suppression systems and spill containment measures.

Immediate action is required upon contact with (Z)-but-2-enedioic acid. For skin contact, remove contaminated clothing and rinse affected area with plenty of water for at least 15 minutes. If eye contact occurs, flush immediately with water for at least 15 minutes and seek medical attention. In case of inhalation, move to fresh air immediately. If ingested, rinse mouth and seek immediate medical advice.

(Z)-but-2-enedioic acid waste must be disposed of in accordance with local, national, and international regulations. The compound should be treated as hazardous waste and handled by licensed waste disposal companies. Never dispose of in regular trash or pour down drains. Neutralization may be possible under controlled conditions, but professional waste management is recommended to ensure environmental compliance and safety.

(Z)-but-2-enedioic acid transport requirements depend on quantity and packaging specifications. While not explicitly classified under ADR dangerous goods regulations based on available data, proper packaging and labeling according to GHS requirements with Warning signal word and GHS07 pictogram are necessary. Consult current transport regulations and safety data sheets for specific shipping requirements and ensure compliance with applicable transport legislation.

(Z)-but-2-enedioic acid is subject to REACH regulation for chemical registration and evaluation within the European Union. The compound must be classified and labeled according to CLP regulation with appropriate hazard classifications including Acute Tox. 4, STOT SE 3, Skin Irrit. 2, Eye Irrit. 2, and Skin Sens. 1. It is not currently listed as a SVHC substance, but users must comply with occupational safety regulations.

(Z)-but-2-enedioic acid is available through OYSI, a specialized European distributor of technical chemicals. OYSI provides reliable supply chains across Europe with proper documentation, safety data sheets, and regulatory compliance support. As an established chemical distributor, OYSI ensures product quality and offers technical support for industrial applications, making it a trusted source for European businesses requiring this compound.