Description

Cyclopropanecarboxylic Acid, 2-(1-Oxopropyl)-, Methyl Ester (9Ci) is a specialized organic ester compound with a cyclopropane backbone. This chemical serves as a valuable high-purity intermediate in advanced synthetic chemistry, enabling the construction of complex molecular architectures. It is primarily sought by pharmaceutical R&D and fine chemical synthesis teams for developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of proprietary drug candidates and active pharmaceutical ingredients (APIs).
• Agrochemical Research: Used in developing novel herbicides, fungicides, and plant growth regulators with unique modes of action.
• Material Science: Serves as a monomer or precursor for specialty polymers and advanced functional materials.
• Organic Synthesis: A versatile reagent for constructing complex, strained-ring systems in academic and industrial research laboratories.
• Flavor & Fragrance Industry: Potential intermediate for creating novel synthetic aroma compounds.

Basic Information

Product Name	Cyclopropanecarboxylic Acid, 2-(1-Oxopropyl)-, Methyl Ester (9Ci)
CAS No.	212137-01-4
Molecular Formula	C8H12O3
Molecular Weight	156.18 g/mol
Synonyms	Methyl 2-propionylcyclopropanecarboxylate; 2-Propionylcyclopropanecarboxylic Acid Methyl Ester; Methyl 2-(1-oxopropyl)cyclopropanecarboxylate; Cyclopropanecarboxylic acid, 2-(1-oxopropyl)-, methyl ester; 2-Acetylcyclopropanecarboxylic acid methyl ester (related); Methyl 2-propionyl-1-cyclopropanecarboxylate
EINECS	Contact for details

Quality Control

We supply this intermediate under a rigorous quality management system. Each batch is produced and tested to meet exacting customer specifications, with purity typically exceeding 97% (by HPLC). A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to ensure traceability and batch-to-batch consistency for your critical R&D and scale-up processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. 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
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 3.0%
Specific Rotation (if chiral)	Contact for details

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