Description

1-Cyclopentene-1-Carboxylic Acid, 5-Methyl- (9Ci) is a specialized organic building block featuring a cyclopentene ring substituted with both a carboxylic acid and a methyl group, offering unique steric and electronic properties for advanced synthesis. This compound is valued for its role as a key chiral intermediate in the development of complex pharmaceutical molecules and high-performance materials. It is primarily sought by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors for constructing novel molecular architectures.

Application

• Pharmaceutical Intermediate: Serves as a critical chiral synthon in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds targeting central nervous system and metabolic disorders.
• Agrochemical Research: Used in the development of novel herbicides and fungicides, where its structural motif can contribute to specific biological activity.
• Ligand and Catalyst Synthesis: Acts as a precursor for creating specialized ligands used in asymmetric catalysis and transition metal complexes.
• Material Science: Employed in the research and production of advanced polymers and liquid crystals, where the rigid cyclopentene core can influence material properties.
• Fine Chemical Production: Utilized as a building block for synthesizing flavors, fragrances, and other high-value specialty chemicals.

Basic Information

Item	Details
Product Name	1-Cyclopentene-1-Carboxylic Acid, 5-Methyl- (9Ci)
CAS No.	53623-50-0
Molecular Formula	C7H10O2
Molecular Weight	126.15 g/mol
Synonyms	5-Methyl-1-cyclopentene-1-carboxylic acid; 5-Methylcyclopent-1-ene-1-carboxylic acid; 5-Methyl-1-cyclopentenecarboxylic acid; 1-Carboxy-5-methyl-1-cyclopentene; 5-Methyl-1-cyclopentene carboxylic acid; 5-Methylcyclopent-1-enecarboxylic acid; 5-Methyl-1-cyclopentene-1-carboxylate (anion form)
EINECS	Contact for details

Quality Control

Our production of 1-Cyclopentene-1-Carboxylic Acid, 5-Methyl- (9Ci) adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including chromatographic purity analysis and structural confirmation, to ensure it meets exacting customer specifications. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment to guarantee traceability and compliance with research and industrial standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive) and should be handled under dry conditions to prevent degradation. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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