Description

Cyclopropanecarboxylic Acid, [(4-Ethylphenyl)Methylene]Hydrazide (9Ci) is a specialized organic compound belonging to the class of hydrazide derivatives, identified by CAS number 475139-74-3. This chemical is valued for its unique molecular scaffold, which makes it a versatile intermediate in advanced synthetic chemistry and pharmaceutical research. It is primarily sought after by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and fine chemical industries for constructing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders or possessing anti-inflammatory properties.
• Agrochemical Research: Used in the development of new-generation pesticides and herbicides, leveraging its hydrazide moiety for biological activity.
• Ligand and Catalyst Synthesis: Acts as a precursor for creating specialized ligands used in asymmetric catalysis and metal-organic frameworks (MOFs).
• Material Science: Investigated as a monomer or cross-linking agent for the production of polymers with specific thermal or mechanical properties.
• Chemical Biology Probe: Utilized in academic and industrial research to study enzyme inhibition or protein-ligand interactions.
• Custom Synthesis & Contract Manufacturing: Supplied to CDMOs (Contract Development and Manufacturing Organizations) for custom synthesis projects requiring high-purity, complex intermediates.

Basic Information

Product Name	Cyclopropanecarboxylic Acid, [(4-Ethylphenyl)Methylene]Hydrazide (9Ci)
CAS No.	475139-74-3
Molecular Formula	C13H16N2O
Molecular Weight	216.28 g/mol
Synonyms	N'-[(4-Ethylphenyl)methylene]cyclopropanecarbohydrazide; (4-Ethylbenzylidene)cyclopropanecarbohydrazide; Cyclopropanecarboxylic acid [(4-ethylphenyl)methylene]hydrazide; 1-Cyclopropanecarbonyl-2-[(4-ethylphenyl)methylidene]hydrazine; 475139-74-3 (CAS); (4-Ethylbenzylidene)hydrazide of cyclopropanecarboxylic acid
EINECS	Contact for details

Quality Control

Our Cyclopropanecarboxylic Acid, [(4-Ethylphenyl)Methylene]Hydrazide (9Ci) is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) detailing key specifications such as assay, related substances, and residual solvents, supporting compliance with cGMP and ICH guidelines for pharmaceutical intermediates.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). Due to its sensitivity to oxidation, it is recommended to store the material under an inert atmosphere (e.g., nitrogen) for long-term stability. Keep away from heat, sparks, and open flames.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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