CAS 10311-7, the unique identifier for 2-ethylhexyl acrylate (2EHA), plays a central role in its international trade, ensuring regulatory compliance, proper classification, and smooth cross-border transactions. In international trade, CAS numbers are required for customs documentation, dangerous goods declarations, and compliance with import/export regulations, as they uniquely identify the substance, avoiding confusion with similar chemicals. 2EHA with CAS 10311-7 is classified as a hazardous material (Class 3 flammable liquid) under international standards, requiring specific labeling, packaging, and documentation—all referencing its CAS number—to meet IMDG (maritime), IATA (air), and ADR (road) requirements. Importing countries use CAS 10311-7 to verify compliance with local regulations: for example, the EU requires REACH registration for CAS 10311-7, while the U.S. uses it to enforce EPA and OSHA standards. Trade agreements and tariffs also reference CAS numbers, determining duty rates and eligibility for preferential treatment. E Plus Chemical Co., Ltd. includes CAS 10311-7 in all trade documents for its 2EHA, facilitating customs clearance and ensuring buyers receive the correct product. This CAS number also enables tracking of trade flows, with governments and industry analysts using it to monitor global supply and demand trends for 2EHA. By standardizing identification, CAS 10311-7 streamlines international trade of 2EHA, reducing administrative barriers and ensuring compliance with global safety and environmental standards.