Description

1-Cyclopentene-1-Carboxylic Acid, 3,5,5-Trimethyl- (9Ci) is a specialized organic compound featuring a cyclopentene ring substituted with a carboxylic acid group and three methyl groups, offering a unique steric and electronic profile. This structural motif makes it a valuable high-purity intermediate for synthesizing complex molecules in advanced research and development. It is primarily sought by industries focused on creating novel pharmaceutical actives, agrochemicals, and performance materials where precise molecular architecture is critical.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of novel drug candidates, particularly those requiring constrained, lipophilic frameworks.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and plant growth regulators.
• Fine Chemical Production: Acts as a precursor for specialty chemicals, flavors, and fragrances requiring specific cyclic structures.
• Material Science Research: Employed in developing advanced polymers, ligands for catalysis, and organic electronic materials.
• Academic & R&D Laboratories: Utilized in organic chemistry research for method development and studying reaction mechanisms of substituted carboxylic acids.

Basic Information

Product Name	1-Cyclopentene-1-Carboxylic Acid, 3,5,5-Trimethyl- (9Ci)
CAS No.	56850-61-4
Molecular Formula	C9H14O2
Molecular Weight	154.21 g/mol
Synonyms	3,5,5-Trimethyl-1-cyclopentene-1-carboxylic acid; 3,5,5-Trimethylcyclopent-1-ene-1-carboxylic Acid; NSC 163063; 1-Cyclopentene-1-carboxylic acid, 3,5,5-trimethyl-; Trimethylcyclopentenecarboxylic acid
EINECS	Contact for details

Quality Control

We maintain a rigorous quality management system to ensure batch-to-batch consistency and high purity. Our products undergo comprehensive analytical testing, including HPLC, GC, NMR, and IR spectroscopy, to verify identity and purity. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting all relevant specifications. We can support development projects with custom purity grades and analytical method development upon request.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (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.