Description

Benzoic Acid, 4-Cyclopentyl- is a substituted benzoic acid derivative featuring a cyclopentyl group at the para position. This structural modification imparts unique steric and electronic properties, making it a valuable advanced pharmaceutical intermediate and a versatile building block in organic synthesis. It is primarily sought after by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for creating novel active compounds.

Application

• Pharmaceutical Intermediate: Key starting material or building block in the synthesis of novel active pharmaceutical ingredients (APIs), particularly those targeting central nervous system (CNS) or metabolic disorders.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and plant growth regulators, leveraging its lipophilic character.
• Liquid Crystal & OLED Materials: Serves as a core component or side-chain modifier in the production of advanced organic electronic materials.
• Organic Synthesis Building Block: Employed in coupling reactions (e.g., Suzuki, Heck) and as a precursor for esters, amides, and acid chlorides in fine chemical manufacturing.
• Polymer Additive Precursor: Used to synthesize specialized monomers or stabilizers that enhance polymer performance properties.
• Flavor & Fragrance Intermediate: Potential intermediate for creating complex aromatic esters used in high-value fragrance compositions.

Basic Information

Product Name	Benzoic Acid, 4-Cyclopentyl-
CAS No.	19936-22-2
Molecular Formula	C₁₂H₁₄O₂
Molecular Weight	190.24 g/mol
Synonyms	4-Cyclopentylbenzoic Acid; p-Cyclopentylbenzoic Acid; Benzoic acid, 4-cyclopentyl-; 4-CPBA; (4-Cyclopentylphenyl)formic acid; NSC 163996; 4-Cyclopentylbenzenecarboxylic acid
EINECS	Contact for details

Quality Control

We maintain a strict quality management system aligned with cGMP principles for advanced intermediates. Every batch of 4-Cyclopentylbenzoic Acid is subjected to rigorous analytical testing, including HPLC for purity and identity confirmation (NMR, IR). Our products are supplied with comprehensive Certificates of Analysis (COA) detailing all critical parameters to ensure batch-to-batch consistency and traceability for your regulatory filings.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from strong oxidizing agents, strong bases, and heat sources.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	< 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.