Description

p-Isopropenylphenol (CAS No. 4286-23-1) is a high-purity phenolic compound with the molecular formula C₉H₁₀O and IUPAC name 4-prop-1-en-2-ylphenol. This versatile organic intermediate is widely used in polymer chemistry, adhesives, and specialty coatings due to its reactive isopropenyl group and phenolic hydroxyl functionality. Our product is rigorously tested to ensure >98% purity (GC) with low levels of impurities, making it ideal for demanding research and industrial applications. Supplied as a white to off-white crystalline solid with a characteristic phenolic odor, it is packaged under inert gas to ensure stability. Storage recommendations include protection from light and moisture at 2-8°C. Key synonyms include 4-Isopropenylphenol and 4-(1-Methylethenyl)phenol.

Properties

• CAS Number: 4286-23-1
• Complexity: 121
• IUPAC Name: 4-isopropenylphenol
• InChI: InChI=1S/C9H10O/c1-7(2)8-3-5-9(10)6-4-8/h3-6,10H,1H2,2H3
• InChI Key: JAGRUUPXPPLSRX-UHFFFAOYSA-N
• Exact Mass: 134.073164938
• Molecular Formula: C9H10O
• Molecular Weight: 134.17
• SMILES: CC(=C)C1=CC=C(C=C1)O
• Topological: 20.2
• Monoisotopic Mass: 134.073164938
• Synonyms: 4-Isopropenylphenol, 4286-23-1, p-Isopropenylphenol, 4-(1-Methylethenyl)phenol, Phenol, 4-(1-methylethenyl)-, 2-(4-Hydroxyphenyl)propene, 4-(1-Propen-2-yl)phenol, 4-hydroxy-alpha-methylstyrene, UNII-2QP218C90D, 2QP218C90D, 4-HYDROXY-.ALPHA.-METHYLSTYRENE, jagruupxpplsrx-uhfffaoysa-n, 4-(prop-1-en-2-yl)phenol, 4-prop-1-en-2-ylphenol, 4-iso-Propenylphenol, 4-Isopropenyl-phenol, MFCD00128236, p-hydroxy-alpha-methylstyrene, CHEMBL277808, 4-Isopropenylphenol (Stabilized with ~1% Hydroquinone), p-isopropenyl phenol, para-isopropenylphenol, 4-Isopropenylphenol #, p-hydroxy-a-methylstyrene, alpha-methyl-p-hydroxystyrene, SCHEMBL135213, SCHEMBL8520339, SCHEMBL9148957, SCHEMBL17888502, DTXSID90962744, BDBM50111618, 1-(1-methylethenyl)-4-hydroxybenzene, AKOS015836255, CS-W005287, AS-10370, SY114602, DB-070363, NS00010670, A11171, Q27255487

Application

p-Isopropenylphenol serves as a key monomer in the synthesis of high-performance phenolic resins and thermosetting polymers. It is particularly valuable in adhesive formulations where its dual functionality enables crosslinking with formaldehyde or epoxy systems. Researchers also utilize this compound as a building block for advanced materials like liquid crystal polymers and photoresists. In pharmaceutical intermediates, it acts as a precursor for antioxidants and UV stabilizers.

Safety and Hazards

GHS Hazard Statements

• H302: Harmful if swallowed [Warning Acute toxicity, oral]
• H371: May cause damage to organs [Warning Specific target organ toxicity, single exposure]
• H401: Toxic to aquatic life [Hazardous to the aquatic environment, acute hazard]
• H411: Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]

Precautionary Statements

• P260, P264, P270, P273, P301+P317, P308+P316, P330, P391, P405, and P501

Hazard Classes and Categories

• Acute toxicity – Category 4
• Specific target organ toxicity – Single exposure – Category 2
• Hazardous to the aquatic environment – Category 2
• Hazardous to the aquatic environment – Category 2

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.