Description
4-(4-Ethylphenyl)benzoic acid (CAS No. 5731-13-5) is a high-purity biphenyl derivative with the molecular formula C15H14O2, widely used in organic synthesis and materials science. This compound features a benzoic acid moiety linked to a 4-ethylphenyl group, offering unique reactivity for coupling reactions and functionalization. Ideal for researchers, it is supplied as a white to off-white crystalline powder with ≥98% purity (HPLC), ensuring consistency in pharmaceutical intermediates, liquid crystal materials, and coordination chemistry applications. Each batch undergoes rigorous QC testing (NMR, MS, HPLC) to meet stringent laboratory standards. Store in a cool, dry place under inert conditions to maintain stability.
Properties
- CAS Number: 5731-13-5
- Complexity: 246
- IUPAC Name: 4-(4-ethylphenyl)benzoic acid
- InChI: InChI=1S/C15H14O2/c1-2-11-3-5-12(6-4-11)13-7-9-14(10-8-13)15(16)17/h3-10H,2H2,1H3,(H,16,17)
- InChI Key: SCEBDBNGUCNRCE-UHFFFAOYSA-N
- Exact Mass: 226.099379685
- Molecular Formula: C15H14O2
- Molecular Weight: 226.27
- SMILES: CCC1=CC=C(C=C1)C2=CC=C(C=C2)C(=O)O
- Topological: 37.3
- Monoisotopic Mass: 226.099379685
- Synonyms: 5731-13-5, 4-(4-Ethylphenyl)benzoic acid, 4′-Ethyl-[1,1′-biphenyl]-4-carboxylic acid, 4′-Ethyl-4-biphenylcarboxylic acid, 4′-Ethylbiphenyl-4-carboxylic acid, 4-Ethylbiphenyl-4′-carboxylic acid, 4-Ethyl-[1,1-biphenyl]-4-carboxylic acid, MFCD00010210, [1,1′-Biphenyl]-4-carboxylic acid, 4′-ethyl-, CHEMBL443832, 4′-ethyl-biphenyl-4-carboxylic acid, SCHEMBL403155, DTXSID20880826, STR05346, 4”-ethylbiphenyl-4-carboxylic acid, BDBM50329374, SBB000662, 4”-ethyl-biphenyl-4-carboxylic acid, AKOS002679749, AC-8746, CS-W013025, FE70491, SY101136, 4′-Ethyl-4-biphenylcarboxylic acid, 98%, 4-Ethyl-[1,1-biphenyl]-4-carboxylicacid, NS00095923, ST50307150, A12658, 4′-Ethyl[1,1′-biphenyl]-4-carboxylic acid #, 4 inverted exclamation mark -Ethylbiphenyl-4-carboxylic Acid
Application
4-(4-Ethylphenyl)benzoic acid serves as a versatile building block in synthesizing liquid crystal displays (LCDs) and organic electronic materials due to its rigid biphenyl core. It is also employed in pharmaceutical research for designing nonsteroidal anti-inflammatory drug (NSAID) analogs. Additionally, its carboxyl group enables conjugation with biomolecules or metal-organic frameworks (MOFs) for advanced material engineering.
Safety and Hazards
GHS Hazard Statements
- H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
- H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
Precautionary Statements
- P264, P264+P265, P280, P302+P352, P305+P351+P338, P321, P332+P317, P337+P317, and P362+P364
Hazard Classes and Categories
- Skin Irrit. 2 (100%)
- Eye Irrit. 2 (100%)
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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.


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