Description

2-Pyrrolidinone,4-Ethylidene-1-Methyl-,(4E)-(9Ci) is a specialized heterocyclic organic compound with the CAS number 235742-85-5. This high-purity intermediate is valued for its unique lactam structure and reactive ethylidene moiety, which make it a critical building block in advanced synthetic chemistry. It is primarily sought after by research and development teams in the pharmaceutical and agrochemical sectors for the synthesis of novel active ingredients and complex molecules.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of complex drug candidates, particularly those targeting neurological and oncological pathways.
• Agrochemical Synthesis: Used in the development of next-generation pesticides and herbicides, leveraging its reactive site for structural diversification.
• Organic Synthesis Building Block: Serves as a versatile scaffold for constructing nitrogen-containing heterocycles in academic and industrial research.
• Material Science Research: Investigated for potential use in creating specialty polymers and functional materials with specific thermal or chemical properties.
• Chemical Reference Standard: Supplied as a high-purity standard for analytical method development and quality control in chemical manufacturing.

Basic Information

Product Name	2-Pyrrolidinone,4-Ethylidene-1-Methyl-,(4E)-(9Ci)
CAS No.	235742-85-5
Molecular Formula	C7H11NO
Molecular Weight	125.17 g/mol
Synonyms	4-Ethylidene-1-methylpyrrolidin-2-one (4E); (4E)-4-Ethylidene-1-methyl-2-pyrrolidinone; 1-Methyl-4-ethylidene-2-pyrrolidinone; 4-Ethylidene-1-methyl-2-pyrrolidone; N-Methyl-4-ethylidene-2-pyrrolidinone; 2-Pyrrolidinone, 4-ethylidene-1-methyl-, (E)-; 235742-85-5
EINECS	Contact for details

Quality Control

Our 2-Pyrrolidinone,4-Ethylidene-1-Methyl-,(4E)-(9Ci) is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided with every shipment. We support cGMP compliance for pharmaceutical applications and can tailor purity grades to meet specific project requirements.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 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.