Description

Cyclopentanecarboxylic Acid, 3-Oxo-, 3-Methyl-2-Butenyl Ester (9Ci) is a specialized organic ester compound with a unique cyclic structure. This chemical serves as a valuable building block and intermediate in advanced organic synthesis, enabling the creation of complex molecular architectures. It is primarily sought after by R&D chemists and process development teams in the pharmaceutical, agrochemical, and fragrance industries for the development of novel active ingredients and specialty chemicals.

Application

• Pharmaceutical Intermediate: Key synthon in the research and development of new active pharmaceutical ingredients (APIs), particularly those requiring complex carbocyclic frameworks.
• Agrochemical Synthesis: Used as a precursor in the manufacture of advanced pesticides, herbicides, and plant growth regulators.
• Fragrance and Flavor Ingredient: Serves as a starting material for the synthesis of novel aroma chemicals and flavor compounds due to its ester functionality and potential for derivatization.
• Organic Synthesis Building Block: Employed in academic and industrial research for cyclopentane ring construction, Michael addition reactions, and other carbon-carbon bond forming processes.
• Material Science Research: Investigated as a monomer or cross-linking agent in the development of specialized polymers and resins.
• Chemical Reference Standard: Supplied as a high-purity standard for analytical method development and quality control in chemical manufacturing.

Basic Information

Item	Details
Product Name	Cyclopentanecarboxylic Acid, 3-Oxo-, 3-Methyl-2-Butenyl Ester (9Ci)
CAS No.	625127-90-4
Molecular Formula	C11H16O3
Molecular Weight	196.24 g/mol
Synonyms	3-Oxocyclopentanecarboxylic Acid 3-Methyl-2-butenyl Ester; Prenalyl 3-Oxocyclopentanecarboxylate; 3-Methylbut-2-en-1-yl 3-oxocyclopentanecarboxylate; Isoprenyl 3-Oxocyclopentanecarboxylate; (3-Methyl-2-butenyl) 3-oxocyclopentanecarboxylate; Cyclopentanecarboxylic acid, 3-oxo-, 3-methyl-2-butenyl ester; 3-Oxo-1-cyclopentanecarboxylic acid prenyl ester
EINECS	Contact for details

Quality Control

Every batch of our Cyclopentanecarboxylic Acid, 3-Oxo-, 3-Methyl-2-Butenyl Ester (9Ci) undergoes rigorous analytical testing to ensure identity, purity, and consistency. We adhere to strict in-house quality standards suitable for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing purity (typically by GC or HPLC), identity confirmation (by IR, NMR), and impurity profile is provided with each shipment to guarantee reliable performance in your critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases and oxidizing agents. Recommended storage temperature is between 2°C and 25°C. The container should be kept tightly sealed in a dry environment to maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 95.0% (Typical 97-99%)
Water Content (KF)	≤ 0.5%
Refractive Index (20°C)	1.470 - 1.480
Specific Gravity (20°C)	1.040 - 1.080

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