Description

Ethanone, 1-[5-[(Hydroxyamino)Methylene]-1,3-cyclopentadien-1-yl]-, (E)- (9Ci) is a specialized organic compound featuring a cyclopentadiene ring functionalized with a hydroxyamino methylene group and an ethanone moiety. This unique molecular architecture makes it a valuable building block and intermediate in advanced synthetic chemistry, particularly for constructing complex heterocyclic systems. It is primarily utilized by pharmaceutical research and fine chemical synthesis sectors for developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, especially those targeting specific enzyme inhibition or receptor modulation.
• Agrochemical Research: Used in developing advanced active ingredients for crop protection products, leveraging its functionalized ring structure.
• Fine Chemical Synthesis: Serves as a versatile building block for creating complex molecules used in materials science, dyes, and specialty polymers.
• Academic & R&D: Employed in research laboratories for methodological studies in organic synthesis and heterocyclic chemistry.
• Ligand and Catalyst Development: Potential use in designing novel ligands for metal-catalyzed reactions due to its nitrogen and oxygen donor atoms.

Basic Information

Product Name	Ethanone, 1-[5-[(Hydroxyamino)Methylene]-1,3-cyclopentadien-1-yl]-, (E)- (9Ci)
CAS No.	81158-09-0
Molecular Formula	C8H9NO2
Molecular Weight	151.16 g/mol
Synonyms	(E)-1-[5-[(Hydroxyamino)methylidene]cyclopenta-1,3-dien-1-yl]ethanone; 1-[5-[(Hydroxyamino)methylidene]-1,3-cyclopentadien-1-yl]ethanone; 1-(5-((Hydroxyamino)methylene)cyclopenta-1,3-dien-1-yl)ethan-1-one; 5-Acetyl-2,4-cyclopentadien-1-ylidenehydroxylamine; (E)-5-Acetyl-2,4-cyclopentadien-1-ylidenehydroxylamine; 81158-09-0; Ethanone, 1-[5-[(hydroxyamino)methylene]-1,3-cyclopentadien-1-yl]-, (E)-
EINECS	Contact for details

Quality Control

Our Ethanone, 1-[5-[(Hydroxyamino)Methylene]-1,3-cyclopentadien-1-yl]-, (E)- (9Ci) is produced under strict quality management protocols. Every batch undergoes rigorous analytical testing including HPLC, NMR, and IR spectroscopy to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all critical specifications. Our quality systems are designed to meet the stringent requirements of pharmaceutical and advanced R&D applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive); therefore, containers must be kept tightly sealed to exclude moisture. For long-term storage, consider using desiccants or storing under an inert atmosphere.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (NMR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%
Single Unknown Impurity (HPLC)	≤ 0.5%
Total Impurities (HPLC)	≤ 2.0%

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