CAS Number: 28447-20-3
Chemical Name: 3-Vinylbenzoic Acid
IUPAC Name: 3-Ethenylbenzoic acid
Synonyms:
m-Vinylbenzoic acid;
3-Ethenylbenzenecarboxylic acid;
Meta-vinylbenzoic acid
Molecular Formula: C₉H₈O₂
Molecular Weight: ~148.16 g/mol
Appearance: White to off-white crystalline solid
Physical State: Solid
Melting Point: Typically reported in the range of 150–155 °C (may vary depending on purity)
Boiling Point: Decomposes upon strong heating
Solubility:
Slightly soluble in water; soluble in organic solvents such as ethanol, methanol, acetone, ethyl acetate, and chloroform
Stability:
Stable under recommended storage conditions; polymerizable due to vinyl group; sensitive to strong oxidizing agents
Carboxylic acid group (–COOH)
Vinyl group (–CH=CH₂)
Aromatic benzene ring
Vinyl-substituted aromatic carboxylic acid / Unsaturated aromatic acid
SMILES (representative):
C=CC1=CC(=CC=C1)C(=O)O
InChI Key (representative):
(Varies by database; available from chemical registries)
28447-20-3 is widely used as a functional monomer and synthetic intermediate. The presence of both a vinyl group and a carboxylic acid functionality allows participation in:
Free radical polymerization
Copolymer formation
Esterification reactions
Amidation reactions
Cross-linking processes
The vinyl group provides polymerizable reactivity, while the carboxyl group offers chemical modification potential.
3-Vinylbenzoic acid is commonly utilized in:
Functional polymer synthesis
Surface-modified resins
Adhesive and coating formulations
Ion-exchange and specialty polymer materials
Its structure allows incorporation into polymer backbones while maintaining reactive acid functionality.
Used as an intermediate in:
Preparation of substituted aromatic compounds
Development of bioactive molecules
Specialty chemical manufacturing
Advanced organic synthesis
The carboxylic acid group enables derivatization into esters, amides, and salts.
Commonly employed in:
Academic polymer chemistry research
Functional material development
Surface chemistry studies
Structure–property relationship investigations
Cross-coupling and modification reactions
Its dual reactivity makes it valuable in designing advanced functional materials.
Causes skin irritation
Causes serious eye irritation
May cause respiratory irritation
H315: Causes skin irritation
H319: Causes serious eye irritation
H335: May cause respiratory irritation
P261: Avoid breathing dust
P280: Wear protective gloves and eye protection
P305 + P351 + P338: IF IN EYES, rinse cautiously with water
P302 + P352: IF ON SKIN, wash with plenty of water
Handle in a well-ventilated area and prevent unintended polymerization by storing under recommended conditions.
Typical Purity: 97–99% (Research and Industrial Grade)
Storage Conditions:
Store in a tightly sealed container
Keep in a cool, dry place
Protect from heat and direct sunlight
May contain polymerization inhibitor; keep away from strong oxidizers
Commercial Use:
Available from specialty chemical manufacturers for polymer production, research applications, and industrial synthesis.
Not intended for direct pharmaceutical, food, or diagnostic use without proper regulatory compliance.
28447-20-3 (3-VINYL BENZOIC ACID) is a versatile vinyl-substituted aromatic carboxylic acid widely utilized in polymer chemistry, fine chemical synthesis, and material science research. Its combination of a polymerizable vinyl group and reactive carboxylic acid functionality makes it an essential building block for advanced functional polymers and specialty chemical applications.
As a trusted manufacturer and supplier in Hyderabad, SriniChem provides high-quality 28447-20-3 (3-VINYL BENZOIC ACID) produced under strict quality control standards. Our product, with CAS No: 28447-20-3, is suitable for both research and industrial use. Choose SriniChem for reliable supply, technical expertise, and customer-focused service. Contact SriniChem today for 3-VINYL BENZOIC ACID.
