Description

3-Buten-2-One, 4-(1-Cyclopenten-1-Yl)-, (E)- (9Ci) is a specialized, high-purity organic intermediate featuring a conjugated enone structure linked to a cyclopentenyl group. This compound matters for its role as a versatile building block in advanced organic synthesis, enabling the construction of complex molecular frameworks. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and fine chemical industries for creating novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel drug candidates, particularly those with complex cyclic or steroidal-like structures.
• Agrochemical Synthesis: Building block for developing new active ingredients in herbicides, fungicides, and plant growth regulators.
• Fine Chemical Production: Used in the manufacture of specialty chemicals, including flavors, fragrances, and advanced polymers.
• Material Science Research: Serves as a monomer or cross-linking agent in the development of novel organic electronic materials or specialty resins.
• Academic & Industrial R&D: A valuable tool for methodological development in organic chemistry, including studies on cycloaddition reactions and asymmetric synthesis.

Basic Information

Product Name	3-Buten-2-One, 4-(1-Cyclopenten-1-Yl)-, (E)- (9Ci)
CAS No.	110845-85-7
Molecular Formula	C9H12O
Molecular Weight	136.19 g/mol
Synonyms	(E)-4-(1-Cyclopenten-1-yl)-3-buten-2-one; 4-Cyclopenten-1-ylidene-2-butanone; (E)-4-Cyclopentenylidenebut-3-en-2-one; 4-(1-Cyclopenten-1-yl)-3-buten-2-one, (E)-; 2-Buten-1-one, 4-(1-cyclopenten-1-yl)-, (E)-; (E)-4-(Cyclopent-1-en-1-yl)but-3-en-2-one
EINECS	Contact for details

Quality Control

Our 3-Buten-2-One, 4-(1-Cyclopenten-1-Yl)-, (E)- (9Ci) is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high chemical purity and isomeric integrity. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing purity, identity, and impurity profiles to support your regulatory and R&D documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Keep away from strong acids and incompatible organic solvents. For long-term storage, consider maintaining under an inert atmosphere to preserve stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0% (Area %)
Isomeric Purity ((E)-isomer, GC)	≥ 95.0%
Water Content (KF)	≤ 0.5%

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