Description

3-Cyclopentene-1-Carboxylicacid,2-(1-Methylethenyl)-(9Ci) is a specialized, high-purity organic intermediate featuring a cyclopentene core with both carboxylic acid and isopropenyl functional groups, offering versatile reactivity for advanced synthesis. This compound is valued for its role as a critical building block in the development of complex molecules, particularly in pharmaceutical research and fine chemical manufacturing. It is essential for chemists and process engineers in the life sciences, agrochemical, and material science sectors who require precise, reliable intermediates for constructing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel active pharmaceutical ingredients (APIs), particularly those with complex cyclic or terpenoid-like structures.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and plant growth regulators that leverage its unique carbon skeleton.
• Fine Chemical Production: Acts as a versatile building block for creating specialty chemicals, including flavors, fragrances, and advanced polymer monomers.
• Material Science Research: Employed in the development of novel organic frameworks, specialty coatings, and advanced materials due to its reactive functional groups.
• Academic & R&D Laboratories: Utilized in organic chemistry research for method development and the exploration of new catalytic cycles or ring-forming reactions.

Basic Information

Product Name	3-Cyclopentene-1-Carboxylicacid,2-(1-Methylethenyl)-(9Ci)
CAS No.	343865-05-4
Molecular Formula	C9H12O2
Molecular Weight	152.19 g/mol
Synonyms	2-Isopropenyl-3-cyclopentene-1-carboxylic acid; 2-(Prop-1-en-2-yl)cyclopent-3-ene-1-carboxylic acid; 2-Vinylidene-3-cyclopentene-1-carboxylic acid; NSC 339063; 3-Cyclopentene-1-carboxylic acid, 2-(1-methylethenyl)-; 2-(1-Methylethenyl)-3-cyclopentene-1-carboxylic acid
EINECS	Contact for details

Quality Control

Our production of 3-Cyclopentene-1-Carboxylicacid,2-(1-Methylethenyl)-(9Ci) adheres to stringent quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and impurity profiling, NMR for structural confirmation, and Karl Fischer titration for moisture content. A detailed Certificate of Analysis (COA) documenting all specifications is provided with every shipment to support your quality assurance and regulatory compliance needs.

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). Keep away from heat, sparks, and open flames. For long-term storage, consider maintaining the material under an inert atmosphere to preserve stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Total impurities ≤ 2.0% Any single impurity ≤ 0.5%

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