Description

1,3-Cyclopentanedione, 2-Acetyl-4-Methylene- (9Ci) is a high-purity, functionalized cyclopentanedione derivative, serving as a versatile and critical synthetic intermediate. Its unique structure, featuring both acetyl and methylene groups on the dione ring, makes it valuable for constructing complex molecular architectures. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors, where it is used to develop novel active ingredients and specialty chemicals.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel drug candidates, particularly those with complex heterocyclic or polycyclic frameworks.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and plant growth regulators.
• Organic Synthesis Reagent: A versatile precursor for Diels-Alder reactions, Michael additions, and other cyclization processes to create specialized organic compounds.
• Material Science Research: Potential monomer or cross-linking agent in the development of polymers with specific thermal or optical properties.
• Flavor & Fragrance Industry: Intermediate for the synthesis of complex aroma chemicals and musk analogs.
• Academic & R&D Laboratories: Serves as a standard or starting material for methodological studies and discovery chemistry.

Basic Information

Product Name	1,3-Cyclopentanedione, 2-Acetyl-4-Methylene- (9Ci)
CAS No.	323187-99-1
Molecular Formula	C8H8O3
Molecular Weight	152.15 g/mol
Synonyms	2-Acetyl-4-methylene-1,3-cyclopentanedione; 4-Methylene-2-acetyl-1,3-cyclopentanedione; 2-Acetyl-4-methylidenecyclopentane-1,3-dione; 1,3-Cyclopentanedione, 2-acetyl-4-methylene-; (9CI) 323187-99-1
EINECS	Contact for details

Quality Control

Our 1,3-Cyclopentanedione, 2-Acetyl-4-Methylene- (9Ci) is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided and available upon request, supporting your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and bases. For long-term storage, consider an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
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.