Description

Cyclopentanone, 3,4-Bis(1-Methylethylidene)- (9Ci) CAS NO 96666-37-4 is a specialized, high-purity organic compound featuring a unique bicyclic structure with two isopropylidene groups. This molecular architecture makes it a valuable advanced intermediate for synthesizing complex molecules in fine chemical and pharmaceutical research. It is primarily sought by R&D chemists and process development scientists working on novel materials, agrochemicals, and active pharmaceutical ingredients (APIs).

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of complex, biologically active molecules and novel drug candidates.
• Agrochemical Synthesis: Used in the research and development of new pesticides, herbicides, and plant growth regulators.
• Fine Chemical Production: Acts as a precursor for specialty chemicals, including fragrances, flavors, and performance materials.
• Material Science Research: Employed in the development of novel polymers, resins, and organic electronic materials due to its rigid, functionalized core.
• Academic & Industrial R&D: A critical reagent for methodological studies in organic synthesis, including cycloaddition and cross-coupling reactions.

Basic Information

Product Name	Cyclopentanone, 3,4-Bis(1-Methylethylidene)- (9Ci)
CAS No.	96666-37-4
Molecular Formula	C11H16O
Molecular Weight	164.24 g/mol
Synonyms	3,4-Bis(isopropylidene)cyclopentanone; 3,4-Diisopropylidenecyclopentanone; 3,4-Bis(1-methylethylidene)cyclopentanone; 3,4-Bis(propan-2-ylidene)cyclopentanone; NSC 406915; Cyclopentanone, 3,4-bis(1-methylethylidene)-; 96666-37-4
EINECS	Contact for details

Quality Control

We maintain a strict quality management system to ensure batch-to-batch consistency and high purity. Our products undergo rigorous quality testing, including chromatographic and spectroscopic analysis, to ensure compliance with industry and customer-specific standards. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. 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 structure
Purity (GC/HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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