CAS 94-04-2 refers to Vinyl 2-ethylhexanoate, a colorless to pale yellow liquid monomer (\(\text{C}_{10}\text{H}_{18}\text{O}_2\)) used in polymer production to improve flexibility and adhesion in coatings, adhesives, and sealants. It is a reactive, water-insoluble compound frequently used in specialty copolymers, often stabilized with inhibitors like MEHQ to prevent premature polymerization. [1, 2, 3, 4, 5]

Key Chemical Properties & Information

• Name: Vinyl 2-ethylhexanoate (also: 2-Ethylhexanoic acid vinyl ester, VeoVa EH)
• CAS Number: 94-04-2
• Molecular Formula: \(\text{C}_{10}\text{H}_{18}\text{O}_2\)
• Molecular Weight: 170.25 g/mol
• Solubility: Soluble in organic solvents; very low solubility in water
• Function: Used as a monomer in free-radical polymerization to produce specialized coatings and plastics

Use of 2-ETHYLHEXANOIC ACID VINYL ESTER‌

Vinyl 2-ethylhexanoate is an important organic compound. Its main uses are reflected in the following aspects:

‌1.Organic synthesis‌: Vinyl 2-ethylhexanoate is widely used in the field of organic synthesis. It can be used as a raw material or intermediate for the synthesis of other organic compounds. Through different chemical reaction pathways, a variety of compounds with specific functions and properties can be prepared. ‌2.Industrial application‌: Vinyl 2-ethylhexanoate also plays an important role in certain industrial processes. For example, it may be used as an additive in certain coatings, resins or plastics to improve the performance or processing characteristics of the product. ‌

3. Scientific research‌: In scientific research, vinyl 2-ethylhexanoate is also often used as a model compound or reactant to study its specific chemical properties, reaction mechanism or biological activity. It should be noted that although vinyl 2-ethylhexanoate has many uses, its safety also needs to be paid attention to during use. Due to its flammability and irritation, appropriate protective measures must be taken to avoid contact with open flames, high heat or oxidants to prevent it from causing harm to human health and the environment.

In addition, with the continuous development and innovation of science and technology, the potential uses of vinyl 2-ethylhexanoate are constantly being explored and expanded. In the future, it may play an important role in more fields and bring more convenience and benefits to human production and life.

Vinyl 2-ethylhexanoate is a reactive vinyl ester suitable for copolymerisation with other vinyl/alkene type monomers, including styrenics, methyacrylates, crotonates, maleates etc.

Applications

Its properties make Vinyl 2-Ethylhexanoate suitable for a wide range of industrial applications including: • Polymers for industrial paints and coatings such as anti-corrosion paints, wood coatings and varnishes and coatings for polyolefins. • Latex’s and spray-dried redispersible powders for mortar admixtures. • Latex’s for adhesives including Pressure Sensitive Adhesives, construction and wood adhesives. • Reactive diluent for specific heat-cured unsaturated polyesters

2-ETHYLHEXANOIC ACID VINYL ESTER Chemical Properties Melting point −90 °C(lit.) Boiling point 86°C 30mm density 0,87 g/cm3 vapor pressure 95Pa at 24.85℃ refractive index n20/D 1.426(lit.) Fp 65°C solubility Insoluble in water form clear liquid color Colorless to Almost colorless Water Solubility 12mg/L at 20℃ Stability: Stable. Incompatible with strong oxidizing agents, strong acids, strong bases. LogP 3.59 at 20℃ EPA Substance Registry System Vinyl 2-ethylhexanoate (94-04-2)