Description

Cyclopropanecarboxylic Acid, [(5-Ethyl-2-Thienyl)Methylene]Hydrazide (9Ci) is a specialized organic compound featuring a cyclopropane carboxylic acid hydrazide moiety linked to a substituted thiophene ring. This unique molecular architecture makes it a valuable chemical intermediate and research building block for the synthesis of novel heterocyclic compounds. It is primarily utilized by pharmaceutical research and agrochemical development organizations seeking to explore new bioactive molecules.

Application

• Pharmaceutical Intermediate: A key precursor in the research and development of new active pharmaceutical ingredients (APIs), particularly those targeting neurological or metabolic pathways.
• Agrochemical Synthesis: Serves as a building block for creating novel fungicides, herbicides, or plant growth regulators with potential enhanced efficacy.
• Chemical Research & Development: Used in academic and industrial R&D labs for constructing complex heterocyclic scaffolds for material science or medicinal chemistry projects.
• Ligand Synthesis: Potential utility in the preparation of specialized ligands for catalysis or metal-organic frameworks (MOFs).
• Bioconjugation Probe Development: The reactive hydrazide group can be exploited for creating probes and linkers in biochemical research.

Basic Information

Product Name	Cyclopropanecarboxylic Acid, [(5-Ethyl-2-Thienyl)Methylene]Hydrazide (9Ci)
CAS No.	550308-57-1
Molecular Formula	C11H14N2OS
Molecular Weight	222.31 g/mol
Synonyms	N'-[(5-Ethyl-2-thienyl)methylene]cyclopropanecarbohydrazide; (5-Ethyl-2-thienyl)methylene cyclopropanecarbohydrazide; Cyclopropanecarboxylic acid [(5-ethyl-2-thienyl)methylene]hydrazide; 1-[(5-Ethylthiophen-2-yl)methylideneamino]-2-cyclopropyl-2-oxoethanamine (alternative representation); 550308-57-1 (CAS Index Name based material)
EINECS	Contact for details

Quality Control

Our production of Cyclopropanecarboxylic Acid, [(5-Ethyl-2-Thienyl)Methylene]Hydrazide (9Ci) adheres to stringent internal quality standards to ensure batch-to-batch consistency and high purity for research applications. All materials are characterized by modern analytical techniques including NMR, HPLC, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your quality assurance protocols.

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). This compound is easily oxidized and should be stored under an inert atmosphere such as nitrogen or argon for long-term stability. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (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.