Description

1-Cyclopentene-1-Acetic Acid, 4,4-Dimethyl- (9Ci) is a specialized organic building block featuring a cyclopentene ring substituted with an acetic acid moiety and geminal dimethyl groups. This compound matters as a versatile chiral synthon and intermediate for the synthesis of complex molecules in advanced research and development. It is primarily needed by pharmaceutical and agrochemical R&D laboratories for constructing novel active ingredients, as well as by fine chemical manufacturers producing high-value specialty chemicals.

Application

• Pharmaceutical Intermediate: A key chiral building block for the synthesis of novel drug candidates, particularly in medicinal chemistry programs targeting complex ring systems.
• Agrochemical Synthesis: Used in the research and development of new pesticides and herbicides, where its unique structure can contribute to biological activity.
• Fine Chemical Production: Serves as a precursor in the manufacture of specialty chemicals, including flavors, fragrances, and advanced materials.
• Academic & Industrial Research: A valuable reagent in organic synthesis for methodological studies, catalysis research, and the development of new synthetic routes.
• Material Science: Potential monomer or modifier in the development of specialized polymers with tailored properties.

Basic Information

Item	Details
Product Name	1-Cyclopentene-1-Acetic Acid, 4,4-Dimethyl- (9Ci)
CAS No.	255384-77-1
Molecular Formula	C9H14O2
Molecular Weight	154.21 g/mol
Synonyms	4,4-Dimethyl-1-cyclopentene-1-acetic acid; (4,4-Dimethyl-1-cyclopenten-1-yl)acetic acid; 4,4-Dimethylcyclopent-1-ene-1-acetic acid; 1-Cyclopentene-1-acetic acid, 4,4-dimethyl-; 255384-77-1; 4,4-Dimethyl-1-cyclopentenylacetic acid
EINECS	Contact for details

Quality Control

Our 1-Cyclopentene-1-Acetic Acid, 4,4-Dimethyl- (9Ci) is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure high purity and consistent performance as a research-grade intermediate. Comprehensive Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place. Due to its hygroscopic nature, it is recommended to handle the material under a dry atmosphere or inert gas when appropriate. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 1.0%

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