Description

Ethyl 2-(1,4-Dioxaspiro[4.5]decan-8-ylidene)propanoate is a specialized organic ester featuring a spirocyclic ketal-protected ketone moiety, making it a valuable and versatile synthetic intermediate. This compound is engineered to provide chemists with a reactive handle for constructing complex molecular architectures, particularly in the synthesis of pharmaceuticals and fine chemicals. It is primarily sought by R&D laboratories and production facilities in the pharmaceutical, agrochemical, and advanced material sectors for use in multi-step organic synthesis.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of active pharmaceutical ingredients (APIs), especially those requiring spirocyclic or complex alicyclic ring systems.
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and plant growth regulators.
• Fine Chemical Production: Serves as a precursor for fragrances, flavors, and other high-value specialty chemicals.
• Academic & Industrial Research: A valuable reagent for methodological development in organic chemistry, including studies on cyclization and carbonyl chemistry.
• Material Science: Potential monomer or cross-linking agent in the development of specialized polymers with unique thermal or mechanical properties.

Basic Information

Product Name	Ethyl 2-(1,4-Dioxaspiro[4.5]decan-8-ylidene)propanoate
CAS No.	19620-33-8
Molecular Formula	C15H24O4
Molecular Weight	268.35 g/mol
Synonyms	Ethyl 2-(1,4-Dioxaspiro[4.5]decan-8-ylidene)propionate; 8-(1-Ethoxycarbonyl-ethylidene)-1,4-dioxaspiro[4.5]decane; 2-(1,4-Dioxaspiro[4.5]decan-8-ylidene)propanoic Acid Ethyl Ester; Ethyl 2-(8-Oxaspiro[4.5]decan-8-ylidene)propanoate (protected form); Spiroketal-protected Ethyl Idenepropanoate
EINECS	Contact for details

Quality Control

Our Ethyl 2-(1,4-Dioxaspiro[4.5]decan-8-ylidene)propanoate is produced under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing specifications such as assay (by HPLC or GC), identity (IR, NMR), and impurity profiles is provided with every shipment to guarantee it meets your research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and heat sources. For long-term storage, consider an inert atmosphere to preserve stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC/GC)	≥ 95.0%
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.