Description

1,3-Dioxolane, 2-Ethynyl-4,4,5,5-Tetramethyl- is a specialized heterocyclic building block featuring a dioxolane ring and a reactive ethynyl group. This unique molecular architecture makes it a valuable intermediate for synthesizing complex molecules in advanced research and development. It is primarily sought after by pharmaceutical and agrochemical R&D teams, as well as by fine chemical manufacturers developing novel materials and functional compounds.

Application

• Pharmaceutical Intermediate: A key synthon for constructing active pharmaceutical ingredients (APIs), particularly in the development of novel drug candidates.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides, herbicides, and plant growth regulators.
• Material Science Research: Serves as a precursor for developing specialty polymers, ligands, and advanced organic frameworks with tailored properties.
• Fine Chemical Manufacturing: Employed in the synthesis of complex, high-value specialty chemicals for various industrial applications.
• Academic & Industrial R&D: A versatile building block for exploratory chemistry in both university laboratories and corporate research centers.

Basic Information

Product Name	1,3-Dioxolane, 2-Ethynyl-4,4,5,5-Tetramethyl-
CAS No.	91435-92-6
Molecular Formula	C9H14O2
Molecular Weight	154.21 g/mol
Synonyms	2-Ethynyl-4,4,5,5-tetramethyl-1,3-dioxolane; 4,4,5,5-Tetramethyl-2-ethynyl-1,3-dioxolane; 2-Ethynyl-2,5,5-trimethyl-1,3-dioxolane (common misnomer); Tetramethyl Ethynyl Dioxolane; Propargyl Acetal Derivative; 1,3-Dioxolane, 2-ethynyltetramethyl-; Acetylene-functionalized dioxolane
EINECS	Contact for details

Quality Control

Our 1,3-Dioxolane, 2-Ethynyl-4,4,5,5-Tetramethyl- is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity. We employ advanced analytical techniques, including GC, HPLC, and NMR, to verify identity and assay. A comprehensive Certificate of Analysis (COA) detailing purity, impurities, and physical parameters is provided with each shipment to support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flames. Due to its light-sensitive nature, containers should be kept in amber glass or opaque packaging during storage.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 95.0%
Water Content (KF)	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.