Description

1-Oxaspiro[2.2]Pentane-2-Carboxylicacid,2-Methyl-,Ethylester(9Ci) is a specialized spirocyclic ester compound that serves as a high-value synthetic intermediate. Its unique spiro[2.2]pentane core structure makes it a critical building block for constructing complex molecular architectures with precise three-dimensional control. This compound is essential for research and development chemists in the pharmaceutical and advanced materials sectors, where it is used to develop novel active ingredients and functional polymers. The CAS number for this product is 171511-99-2.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the synthesis of novel drug candidates, particularly in central nervous system (CNS) and antiviral research.
• Agrochemical Development: Used in creating advanced pesticides and herbicides with novel modes of action and improved environmental profiles.
• Ligand & Catalyst Synthesis: Serves as a precursor for sophisticated ligands used in asymmetric catalysis and transition metal complexes.
• Advanced Material Monomer: Incorporated into specialty polymers and resins to impart unique rigidity, thermal stability, or optical properties.
• Flavor & Fragrance Chemistry: Employed in the synthesis of complex, high-value aroma chemicals with specific stereochemical notes.
• Academic & Process R&D: A valuable reagent for methodological studies in organic synthesis and process chemistry optimization.

Basic Information

Product Name	1-Oxaspiro[2.2]Pentane-2-Carboxylicacid,2-Methyl-,Ethylester(9Ci)
CAS No.	171511-99-2
Molecular Formula	C8H12O3
Molecular Weight	156.18 g/mol
Synonyms	Ethyl 2-Methyl-1-oxaspiro[2.2]pentane-2-carboxylate; 2-Methyl-1-oxaspiro[2.2]pentane-2-carboxylic Acid Ethyl Ester; Spiro[2.2]pentane-2-carboxylic acid, 2-methyl-, ethyl ester, 1-oxide; Ethyl 2-methyl-1-oxa-2-azaspiro[2.2]pentane-2-carboxylate (related structure); 171511-99-2; Spirocyclic ethyl ester
EINECS	Contact for details

Quality Control

Every batch of 1-Oxaspiro[2.2]Pentane-2-Carboxylicacid,2-Methyl-,Ethylester(9Ci) is produced and tested under a strict quality management system. We provide comprehensive analytical data to ensure the compound meets the high-purity standards required for sensitive synthetic applications. A detailed Certificate of Analysis (COA) confirming identity, purity, and impurity profile is supplied with each shipment.

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). This compound is moisture-sensitive (hygroscopic); keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) for long-term storage to prevent degradation.

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.