Description

Cyclopropanecarboxylic Acid, 1-(1-Oxopropyl)-, Methyl Ester (9Ci) is a specialized organic ester compound featuring a cyclopropane ring, a key structural motif in advanced chemical synthesis. This compound matters as a versatile and high-purity building block for creating complex molecular architectures in pharmaceutical and agrochemical research. It is primarily needed by R&D chemists and process development scientists working on novel active ingredients, where its unique strained-ring system can impart specific biological activity or modify physical properties. The product is supplied with full traceability and analytical documentation to support critical development workflows.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the research and development of new drug candidates, particularly those targeting central nervous system (CNS) disorders or infectious diseases.
• Agrochemical Synthesis: Used in the preparation of novel herbicides, fungicides, or insecticides, where the cyclopropane moiety can enhance stability and efficacy.
• Chemical Research & Development: Acts as a versatile building block in organic synthesis for constructing complex, stereodefined molecules in academic and industrial laboratories.
• Material Science Precursor: Potential use in the synthesis of specialty monomers or ligands for advanced polymers and catalytic systems.
• Flavor & Fragrance Industry: May be employed in the synthesis of high-value aroma chemicals with unique olfactory profiles.

Basic Information

Product Name	Cyclopropanecarboxylic Acid, 1-(1-Oxopropyl)-, Methyl Ester (9Ci)
CAS No.	524735-87-3
Molecular Formula	C8H12O3
Molecular Weight	156.18 g/mol
Synonyms	1-(1-Oxopropyl)cyclopropanecarboxylic acid methyl ester; Methyl 1-propionylcyclopropanecarboxylate; 1-Propionylcyclopropanecarboxylic acid methyl ester; Cyclopropanecarboxylic acid, 1-propionyl-, methyl ester; Methyl 1-propionylcyclopropane-1-carboxylate
EINECS	Contact for details

Quality Control

Our Cyclopropanecarboxylic Acid, 1-(1-Oxopropyl)-, Methyl Ester (9Ci) is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including chromatographic purity assays and structural confirmation, to ensure it meets the high standards required for research and development applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to guarantee consistency and support your regulatory documentation.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at controlled room temperature (typically 15-25°C). Keep away from strong bases and incompatible materials such as strong oxidizing agents. The container must be kept tightly closed to prevent moisture absorption or contamination.

Specification

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