Description

Cyclopentanecarboxylic Acid, 2-(Cyanomethylene)-, (E)- (8Ci) is a specialized organic intermediate featuring a cyclopentane ring core functionalized with both carboxylic acid and cyano-methylene groups. This compound matters as a versatile building block for synthesizing complex molecules, particularly in the development of active pharmaceutical ingredients (APIs) and advanced agrochemicals. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and fine chemical industries for constructing novel molecular architectures.

Application

• Pharmaceutical Intermediate: A key synthon for the synthesis of novel drug candidates, particularly those with cyclic or constrained structures.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides and herbicides, leveraging its functionalized cyclopentane scaffold.
• Fine Chemical Production: Serves as a precursor for dyes, pigments, and other performance chemicals requiring specific steric and electronic properties.
• Material Science Research: Investigated as a monomer or cross-linking agent for developing specialty polymers with unique thermal or mechanical characteristics.
• Academic & Industrial R&D: Employed in methodological studies and as a reference standard in organic synthesis and analytical chemistry.

Basic Information

Product Name	Cyclopentanecarboxylic Acid, 2-(Cyanomethylene)-, (E)- (8Ci)
CAS No.	25341-99-5
Molecular Formula	C8H9NO2
Molecular Weight	151.16 g/mol
Synonyms	(E)-2-(Cyanomethylene)cyclopentanecarboxylic Acid; 2-(Cyanomethylene)cyclopentanecarboxylic Acid; (E)-2-(Cyanomethylidene)cyclopentane-1-carboxylic Acid; trans-2-(Cyanomethylene)cyclopentanecarboxylic Acid; Cyclopentanecarboxylic acid, 2-(cyanomethylene)-, (E)-; 25341-99-5; (E)-Cyclopentanecarboxylic acid, 2-(cyanomethylene)-
EINECS	Contact for details

Quality Control

Our Cyclopentanecarboxylic Acid, 2-(Cyanomethylene)-, (E)- (8Ci) is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided and available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong oxidizing agents, strong bases, and sources of ignition. 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
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 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.