Description

2-Cyclopenten-1-One, 2-Methyl-3-(1,2-Propadienyl)- (9Ci) is a specialized organic compound featuring a cyclopentenone core functionalized with methyl and allenyl substituents, making it a valuable building block for complex organic synthesis. This compound matters for its role as a key intermediate in the development of pharmaceuticals, agrochemicals, and advanced materials, where its unique structure enables the construction of intricate molecular frameworks. It is primarily needed by R&D chemists and process development scientists in the fine chemical, pharmaceutical, and agrochemical industries.

Application

• Pharmaceutical Intermediate: Serves as a crucial precursor in the synthesis of active pharmaceutical ingredients (APIs) and novel drug candidates, particularly those with complex cyclic structures.
• Agrochemical Synthesis: Used in the research and production of advanced 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 novel polymers, organic electronic materials, and advanced coatings.
• Academic & Industrial R&D: A valuable reagent for methodological studies in organic chemistry, including cycloaddition and cross-coupling reactions.

Basic Information

Product Name	2-Cyclopenten-1-One, 2-Methyl-3-(1,2-Propadienyl)- (9Ci)
CAS No.	566190-49-6
Molecular Formula	C9H10O
Molecular Weight	134.18 g/mol
Synonyms	2-Methyl-3-(1,2-propadienyl)-2-cyclopenten-1-one; 2-Methyl-3-(prop-1,2-dien-1-yl)cyclopent-2-en-1-one; 2-Methyl-3-(propadienyl)cyclopent-2-en-1-one; Allenylmethylcyclopentenone; 3-Allene-2-methyl-2-cyclopenten-1-one; 2-Cyclopenten-1-one, 2-methyl-3-(1,2-propadienyl)-; (9CI)
EINECS	Contact for details

Quality Control

Our 2-Cyclopenten-1-One, 2-Methyl-3-(1,2-Propadienyl)- (9Ci) is produced under strict quality management systems. Every batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing specifications such as assay (by GC/HPLC), identity confirmation (by IR/GC-MS), and impurity profiles. Our quality commitment aligns with cGMP principles for pharmaceutical intermediates and ISO standards for industrial applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong acids and incompatible organic solvents. Due to its light-sensitive nature, containers should be amber-colored or stored in light-resistant enclosures. For long-term storage, consider under an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC/HPLC)	≥ 95.0%
Purity (GC Area %)	≥ 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.