Description

Cyclopropylacetic Acid CAS NO 5239-82-7 is a versatile carboxylic acid derivative characterized by its reactive cyclopropyl moiety. This compound serves as a crucial high-purity building block in advanced organic synthesis, enabling the introduction of the strained, bioactive cyclopropyl ring into target molecules. It is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and fine chemical industries developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key synthon for the production of active pharmaceutical ingredients (APIs), particularly those containing cyclopropane rings for enhanced metabolic stability and receptor binding.
• Agrochemical Synthesis: Building block for novel herbicides, fungicides, and insecticides where the cyclopropyl group imparts specific biological activity.
• Fine Chemical Production: Used in the synthesis of specialty chemicals, flavors, fragrances, and advanced polymer precursors.
• Research & Development: A valuable reagent in medicinal chemistry and process chemistry for exploring new chemical entities and synthetic routes.
• Ligand and Catalyst Preparation: Serves as a precursor for chiral auxiliaries and ligands used in asymmetric catalysis.

Basic Information

Product Name	Cyclopropylacetic Acid
CAS No.	5239-82-7
Molecular Formula	C5H8O2
Molecular Weight	100.12 g/mol
Synonyms	Cyclopropaneacetic Acid; Cyclopropanecarboxylic Acid, Methyl-; 2-Cyclopropylethanoic Acid; (Cyclopropyl)acetic Acid; NSC 406106; Cyclopropyl Acetic Acid; Cyclopropane Acetic Acid; Cyclopropylethanoic Acid
EINECS	226-039-1

Quality Control

Our Cyclopropylacetic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, NMR, and FTIR, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all specifications and test results. Our quality commitment supports compliance with cGMP, ISO, and REACH standards for global supply.

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. Due to its nature as a strong acid/organic solvent, store separately from incompatible materials such as strong bases, oxidizing agents, and amines.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 98.0%
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.