Description

2-(2,4-Hexadiynylidene)-1,6-Dioxaspiro[4.5]Decane-3,4-Dicarboxylic Acid Dimethyl Ester is a specialized organic compound featuring a unique spirocyclic and diyne-containing structure. This complex molecular architecture makes it a valuable advanced synthetic intermediate for research and development in fine chemical synthesis. It is primarily sought by industries focused on developing novel materials, pharmaceuticals, and agrochemicals where its distinct reactive framework enables the construction of complex target molecules.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for complex spirocyclic or conjugated systems.
• Agrochemical Research: Used in the development of new crop protection agents, leveraging its reactive diyne and ester functionalities.
• Material Science: Acts as a precursor for specialty polymers, liquid crystals, or organic electronic materials due to its rigid, conjugated backbone.
• Academic & Industrial R&D: Employed in organic chemistry research for methodology development and the synthesis of complex natural product analogs.
• Fine Chemical Synthesis: Utilized as a high-value intermediate for creating flavors, fragrances, and other specialty chemicals requiring precise structural motifs.

Basic Information

Product Name	2-(2,4-Hexadiynylidene)-1,6-Dioxaspiro[4.5]Decane-3,4-Dicarboxylic Acid Dimethyl Ester
CAS No.	54089-11-1
Molecular Formula	C19H22O6
Molecular Weight	346.38 g/mol
Synonyms	Dimethyl 2-(2,4-hexadiynylidene)-1,6-dioxaspiro[4.5]decane-3,4-dicarboxylate; 1,6-Dioxaspiro[4.5]decane-3,4-dicarboxylic acid, 2-(2,4-hexadiynylidene)-, dimethyl ester; Spiro[1,3-dioxolane-4,9'-[9]oxacyclononen]-2,2-dicarboxylic acid, 8-(1,3-pentadiyn-1-ylidene)-, dimethyl ester
EINECS	Contact for details

Quality Control

Our production of 2-(2,4-Hexadiynylidene)-1,6-Dioxaspiro[4.5]Decane-3,4-Dicarboxylic Acid Dimethyl Ester adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and structural integrity. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to guarantee batch-to-batch consistency for your critical R&D and scale-up processes.

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 an inert atmosphere to preserve 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.