Description

Cyclopropanecarboxylic Acid, 2-Acetyl-2-Methyl-, Methyl Ester (9Ci) is a specialized organic compound featuring a cyclopropane ring, an acetyl group, and a methyl ester functionality, making it a versatile building block for advanced chemical synthesis. This high-purity intermediate is critical for research and development in fine chemical and pharmaceutical manufacturing, where precise molecular architecture is required. It is primarily sought by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials sectors for constructing complex molecules.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the research and development of novel active pharmaceutical ingredients (APIs), particularly for compounds requiring a constrained cyclopropane scaffold.
• Agrochemical Synthesis: Used in the development of advanced pesticides and herbicides, where the cyclopropane moiety can contribute to biological activity and stability.
• Fine Chemical Production: Acts as a precursor in the synthesis of flavors, fragrances, and other specialty chemicals requiring complex ester and ketone functionalities.
• Material Science Research: Employed in the development of novel polymers or organic electronic materials due to its unique three-membered ring structure.
• Academic & Industrial R&D: A valuable reagent for methodological studies in organic chemistry, including ring-opening reactions and cross-coupling methodologies.

Basic Information

Product Name	Cyclopropanecarboxylic Acid, 2-Acetyl-2-Methyl-, Methyl Ester (9Ci)
CAS No.	113503-39-2
Molecular Formula	C8H12O3
Molecular Weight	156.18 g/mol
Synonyms	Methyl 2-Acetyl-2-methylcyclopropanecarboxylate; 2-Acetyl-2-methylcyclopropanecarboxylic acid methyl ester; Methyl 2-methyl-2-acetylcyclopropanecarboxylate; 2-Methyl-2-acetylcyclopropanecarboxylic Acid Methyl Ester; Cyclopropanecarboxylic acid, 2-acetyl-2-methyl-, methyl ester (9CI)
EINECS	Contact for details

Quality Control

Our Cyclopropanecarboxylic Acid, 2-Acetyl-2-Methyl-, Methyl Ester (9Ci) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency suitable for demanding R&D and scale-up applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment.

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. For long-term storage, consider under an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Purity (GC)	≥ 96.0%
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.