4-Vinylbenzoic Acid
- CAS No.1075-49-6
- GradeIndustrial / Pharmaceutical
- Availability● In Stock
High-purity 4-Vinylbenzoic acid (CAS 1075-49-6), a versatile aromatic vinyl monomer widely used as an intermediate in organic and polymer synthesis.
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Product Overview
4-Vinylbenzoic acid is a high-value aromatic carboxylic acid featuring a reactive vinyl group at the para position relative to the carboxyl functionality. This bifunctional structure enables its dual role in both polymer chemistry and fine organic synthesis. As a white to off-white crystalline powder with assay purity of ≥97.0%, it serves as a critical building block for functional polymers, crosslinking agents, and specialty resins.
Specifications
| Molecular Formula | C9H8O2 |
|---|---|
| Molecular Weight | 148.16 g/mol |
| CAS Number | 1075-49-6 |
| Melting Point | 142–144 °C (lit.) |
| Boiling Point | 291.3 ± 19.0 °C at 760 mmHg |
| Density | 1.2 ± 0.1 g/cm³ |
| Flash Point | 132.8 ± 16.2 °C |
| LogP | 2.18 |
| Vapour Pressure | 0.0 ± 0.6 mmHg at 25 °C |
| Appearance | White to off-white powder |
| Assay | ≥97.0% |
Industrial Applications
As a key intermediate in advanced organic synthesis, 4-vinylbenzoic acid is extensively employed in the production of functionalized polystyrenes, ion-exchange resins, and hydrogel matrices. Its carboxylic acid group allows for facile derivatization—such as esterification or amidation—while the vinyl moiety participates readily in free-radical polymerization. This dual reactivity makes it ideal for designing stimuli-responsive materials, bioconjugation scaffolds, and specialty coatings requiring tailored surface properties.
- Serves as a monomer for synthesizing pH-sensitive or water-soluble copolymers
- Used in the modification of polymer backbones to introduce carboxyl functionality
- Acts as a precursor in the preparation of metal-chelating resins and chromatographic media
- Enables covalent immobilization of biomolecules in diagnostic and biosensor applications
Stored in a cool, well-ventilated area away from oxidizing agents, this compound is typically supplied in 25 kg drums or customized packaging to meet industrial-scale requirements.
