Description

2-Cyclopenten-1-One, 3-Ethoxy-5-(Hydroxymethylene)- (9Ci) is a specialized organic building block featuring a reactive hydroxymethylene group on a cyclopentenone scaffold. This compound matters as a versatile synthon for constructing complex molecular architectures, particularly in fine chemical and pharmaceutical synthesis. It is primarily needed by research chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials industries for developing novel active ingredients and functional intermediates.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of complex drug molecules and bioactive compounds.
• Agrochemical Synthesis: Used in the research and development of novel pesticides, herbicides, and plant growth regulators.
• Fine Chemical Production: Acts as a versatile building block for creating specialty chemicals, flavors, and fragrances.
• Material Science Research: Employed in the development of advanced polymers and organic electronic materials due to its conjugated system.
• Academic & R&D: A valuable reagent for methodological studies in organic chemistry, including cycloaddition and condensation reactions.

Basic Information

Product Name	2-Cyclopenten-1-One, 3-Ethoxy-5-(Hydroxymethylene)- (9Ci)
CAS No.	524735-05-5
Molecular Formula	C8H10O3
Molecular Weight	154.16 g/mol
Synonyms	3-Ethoxy-5-(hydroxymethylene)cyclopent-2-en-1-one; 5-(Hydroxymethylene)-3-ethoxy-2-cyclopenten-1-one; 3-Ethoxy-5-hydroxymethylene-2-cyclopenten-1-one; 2-Cyclopenten-1-one, 3-ethoxy-5-(hydroxymethylene)-; Ethoxy(hydroxymethylene)cyclopentenone; Cyclopentenone derivative CAS 524735-05-5
EINECS	Contact for details

Quality Control

Our 2-Cyclopenten-1-One, 3-Ethoxy-5-(Hydroxymethylene)- (9Ci) is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including chromatographic purity analysis and structural confirmation, to ensure it meets the high standards required for research and development 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 place at a controlled room temperature (15-25°C). This material is easily oxidized and should be handled and stored under an inert atmosphere (e.g., nitrogen or argon) for long-term stability. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Yellow to light brown crystalline powder or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.5%

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