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Atomfair 4-Butylbenzoic acid p-Butylbenzoic acid C11H14O2 CAS 20651-71-2

4-Butylbenzoic Acid (CAS No. 20651-71-2) is a high-purity organic compound with the molecular formula C11H14O2. This white crystalline solid is a derivative of benzoic acid, featuring a butyl group at the para position, making it a valuable intermediate in organic synthesis and material science. With a molecular weight of 178.23 g/mol, it exhibits excellent solubility in organic solvents such as ethanol, methanol, and dimethyl sulfoxide (DMSO), while being sparingly soluble in water. Our product is rigorously tested to ensure ≥98% purity (HPLC) and is supplied in sealed packaging to maintain stability and prevent moisture absorption. Ideal for researchers in pharmaceuticals,…

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Description

4-Butylbenzoic Acid (CAS No. 20651-71-2) is a high-purity organic compound with the molecular formula C11H14O2. This white crystalline solid is a derivative of benzoic acid, featuring a butyl group at the para position, making it a valuable intermediate in organic synthesis and material science. With a molecular weight of 178.23 g/mol, it exhibits excellent solubility in organic solvents such as ethanol, methanol, and dimethyl sulfoxide (DMSO), while being sparingly soluble in water. Our product is rigorously tested to ensure ≥98% purity (HPLC) and is supplied in sealed packaging to maintain stability and prevent moisture absorption. Ideal for researchers in pharmaceuticals, liquid crystals, and polymer chemistry, 4-Butylbenzoic Acid is a versatile building block for carboxylation reactions, esterifications, and the synthesis of advanced functional materials. Available in quantities from grams to kilograms, it is accompanied by detailed technical data, including NMR, FTIR, and MSDS.

Properties

  • CAS Number: 20651-71-2
  • Complexity: 157
  • IUPAC Name: 4-butylbenzoic acid
  • InChI: InChI=1S/C11H14O2/c1-2-3-4-9-5-7-10(8-6-9)11(12)13/h5-8H,2-4H2,1H3,(H,12,13)
  • InChI Key: JFKUBRAOUZEZSL-UHFFFAOYSA-N
  • Exact Mass: 178.099379685
  • Molecular Formula: C11H14O2
  • Molecular Weight: 178.23
  • SMILES: CCCCC1=CC=C(C=C1)C(=O)O
  • Topological: 37.3
  • Monoisotopic Mass: 178.099379685
  • Synonyms: 4-Butylbenzoic acid, Benzoic acid, 4-butyl-, p-Butylbenzoic acid, p-n-Butylbenzoic acid, EINECS 243-940-9, DTXSID8066638, DTXCID3036361, 243-940-9, jfkubraouzezsl-uhfffaoysa-n, 20651-71-2, 4-n-Butylbenzoic acid, 4-Butyl-benzoic acid, 4-n-butyl benzoic acid, 25651-71-2, MFCD00002571, p-Butylbenzoic Acid; 4-n-Butylbenzoic Acid; p-n-Butylbenzoic Acid;, p-n-butyl benzoic acid, 4-Butylbenzoic acid, 99%, SCHEMBL181230, CHEMBL116157, SCHEMBL5328850, SCHEMBL5328858, SCHEMBL8759412, SCHEMBL9693784, 7QP4538G5R, SBB059140, STL197591, AKOS000200682, CS-W017317, NCGC00339428-01, AC-18363, SY033870, TS-00187, B0241, NS00021838, ST50406503, EN300-14998, AB01109231-03, Z57169481

Application

4-Butylbenzoic Acid is widely used as a precursor in the synthesis of liquid crystal displays (LCDs) and other advanced materials due to its mesogenic properties. It serves as a key intermediate in pharmaceutical research, particularly in the development of anti-inflammatory and antimicrobial agents. Additionally, this compound is employed in polymer chemistry to modify surface properties and enhance material performance.

Safety and Hazards

GHS Hazard Statements

  • H302 (71.4%): Harmful if swallowed [Warning Acute toxicity, oral]
  • H315 (85.7%): Causes skin irritation [Warning Skin corrosion/irritation]
  • H319 (85.7%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
  • H335 (71.4%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary Statements

  • P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501

Hazard Classes and Categories

  • Acute Tox. 4 (71.4%)
  • Skin Irrit. 2 (85.7%)
  • Eye Irrit. 2A (85.7%)
  • STOT SE 3 (71.4%)

If you are interested or have any questions, please contact us at support@atomfair.com

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

Disclaimer

Intended Use & Restrictions

This product is sold exclusively for laboratory research, analytical testing, or non-commercial purposes.

  • Strictly prohibited: Resale, repackaging, or formulation into commercial products.
  • Not approved for human/animal use, diagnostics, or manufacturing (including pharmaceuticals, agrochemicals, or consumer goods).

Patent & Regulatory Compliance

Certain molecules may be protected by active patents or regulatory restrictions.

  • Buyers must independently verify patent status (e.g., via USPTO/EPO/CNIPA) and comply with local laws.
  • Atomfair LLC does not provide legal assurances regarding patent non-infringement or jurisdictional compliance.

Liability Release

By purchasing, the buyer agrees to:

  • Use this product only as permitted by law.
  • Indemnify Atomfair LLC against all claims arising from misuse, patent infringement, or regulatory violations.

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