Description

Cyclopropanecarboxylic Acid, (1-Methylethylidene)-, Methyl Ester (9Ci) is a specialized organic ester compound characterized by its unique cyclopropane and isopropylidene functional groups. This chemical serves as a valuable high-purity intermediate for advanced synthesis in research and industrial chemistry. It is primarily needed by pharmaceutical, agrochemical, and fine chemical manufacturers for developing novel active ingredients and complex molecular architectures.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of proprietary drug candidates and active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the research and development of new pesticides, herbicides, and plant growth regulators.
• Fine Chemical Production: Serves as a precursor for creating complex fragrance compounds, flavors, and specialty polymers.
• Organic Synthesis & Research: A versatile reagent in academic and industrial R&D labs for constructing cyclopropane-containing molecules and exploring new reaction pathways.
• Material Science: Potential monomer or cross-linking agent in the development of advanced polymeric materials with specific thermal or mechanical properties.

Basic Information

Product Name	Cyclopropanecarboxylic Acid, (1-Methylethylidene)-, Methyl Ester (9Ci)
CAS No.	59456-35-8
Molecular Formula	C8H12O2
Molecular Weight	140.18 g/mol
Synonyms	2-Cyclopropyl-2-methylacrylic acid methyl ester; Methyl 2-cyclopropyl-2-methylacrylate; Methyl 2-cyclopropyl-2-methylpropenoate; 2-Methyl-2-cyclopropylacrylic acid methyl ester; (1-Methylethylidene)cyclopropanecarboxylic acid methyl ester; Cyclopropanecarboxylic acid, 2-methyl-1-methyleneethyl ester; Isopropylidenecyclopropanecarboxylic acid methyl ester
EINECS	Contact for details

Quality Control

Our Cyclopropanecarboxylic Acid, (1-Methylethylidene)-, Methyl Ester (9Ci) is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the exacting standards required for sensitive synthesis applications. Certificates of Analysis (COA) documenting identity, purity, and impurity profiles are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from heat, sparks, and open flame. For long-term storage, consider under an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/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.