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Atomfair 4-Ethylcyclohexanecarboxylic Acid C9H16O2 CAS 91328-77-7

4-Ethylcyclohexanecarboxylic Acid (CAS No. 91328-77-7) is a high-purity cycloaliphatic carboxylic acid with the molecular formula C9H16O2. This compound is characterized by its ethyl-substituted cyclohexane ring, which confers unique steric and electronic properties, making it valuable in organic synthesis and material science. Available in both cis and trans isomeric forms, it is supplied as a white to off-white crystalline solid with ≥98% purity (HPLC). Ideal for researchers, it is rigorously tested for consistency, stability, and low trace metal content. Suitable for use as a building block in pharmaceuticals, agrochemicals, and specialty polymers. Packaged under inert gas to ensure longevity and stored…

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Description

4-Ethylcyclohexanecarboxylic Acid (CAS No. 91328-77-7) is a high-purity cycloaliphatic carboxylic acid with the molecular formula C9H16O2. This compound is characterized by its ethyl-substituted cyclohexane ring, which confers unique steric and electronic properties, making it valuable in organic synthesis and material science. Available in both cis and trans isomeric forms, it is supplied as a white to off-white crystalline solid with ≥98% purity (HPLC). Ideal for researchers, it is rigorously tested for consistency, stability, and low trace metal content. Suitable for use as a building block in pharmaceuticals, agrochemicals, and specialty polymers. Packaged under inert gas to ensure longevity and stored in amber glass vials to prevent photodegradation.

Properties

  • CAS Number: 91328-77-7
  • Complexity: 134
  • IUPAC Name: 4-ethylcyclohexanecarboxylic acid
  • InChI: InChI=1S/C9H16O2/c1-2-7-3-5-8(6-4-7)9(10)11/h7-8H,2-6H2,1H3,(H,10,11)
  • InChI Key: UNROFSAOTBVBBT-UHFFFAOYSA-N
  • Exact Mass: 156.115029749
  • Molecular Formula: C9H16O2
  • Molecular Weight: 156.22
  • SMILES: CCC1CCC(CC1)C(=O)O
  • Topological: 37.3
  • Monoisotopic Mass: 156.115029749
  • Synonyms: 4-ethylcyclohexanecarboxylic acid, 91328-77-7, 676-757-1, 805-829-9, trans-4-ethylcyclohexanecarboxylic acid, 6833-47-2, 4-ethylcyclohexane-1-carboxylic acid, 4-Ethylcyclohexanecarboxylicacid, MFCD01076323, MFCD01568857, (1s,4r)-4-ethylcyclohexane-1-carboxylic acid, Cyclohexanecarboxylic acid, 4-ethyl-, Bionet2_000662, Cyclohexanecarboxylic acid, 4-ethyl-, trans-, SCHEMBL178465, SCHEMBL879831, SCHEMBL9036871, SCHEMBL14643284, SCHEMBL20293395, SCHEMBL21542410, SCHEMBL21542473, DTXSID80987865, UNROFSAOTBVBBT-UHFFFAOYSA-N, UNROFSAOTBVBBT-ZKCHVHJHSA-N, HMS1365O02, SBB059323, AKOS006343445, AKOS008967382, AB08223, CS-W018003, SB66332, trans-4-ethylcyclohexane carboxylic acid, AS-10795, SY005761, SY113622, Trans-4-Ethyl-cyclohexane carboxylic acid, DB-088483, CS-0128921, E0904, E0966, ST50824587, 4-Ethylcyclohexanecarboxylic acid, cis + trans, EN300-159789, EN300-221923, F16511, F16564, 12N-105, trans-(1r,4r)-4-Ethylcyclohexane-1-carboxylic acid, F2167-8041, Z1201620833

Application

4-Ethylcyclohexanecarboxylic Acid is widely employed as an intermediate in the synthesis of fine chemicals and active pharmaceutical ingredients (APIs). Its cycloaliphatic structure makes it a versatile precursor for catalysts, ligands, and chiral auxiliaries in asymmetric synthesis. Researchers also utilize it in polymer modification to enhance thermal stability and rigidity in engineered materials. Additionally, it serves as a key substrate in studying steric effects in cyclohexane ring systems.

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. 2A (100%)
  • STOT SE 3 (83.3%)

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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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