Description

1-(2,2-Dichlorocyclopropyl)-1,1,3,3,3-Pentamethylpropanedisiloxane is a specialized organosilicon compound featuring a reactive dichlorocyclopropyl group. This unique structure makes it a valuable advanced intermediate for synthesizing novel silicone-based materials and functionalized polymers. It is primarily sought after by R&D chemists and process engineers in the pharmaceutical, agrochemical, and advanced materials sectors for developing products with tailored properties.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and drug candidates, particularly those requiring silicon-containing or cyclopropyl motifs.
• Agrochemical Synthesis: Serves as a key building block for creating novel pesticides, herbicides, and fungicides with enhanced efficacy and environmental profiles.
• Polymer Modification: Acts as a functional monomer or cross-linking agent to introduce dichlorocyclopropyl groups into silicone polymers, altering their reactivity, adhesion, or thermal properties.
• Surface Chemistry & Coatings: Employed to develop specialized surface treatments and release coatings where the reactive chlorine atoms facilitate bonding to substrates.
• Material Science Research: A critical reagent for academic and industrial R&D focused on creating new hybrid organic-inorganic materials and exploring structure-property relationships.
• Ligand & Catalyst Development: Used to synthesize novel silicon-based ligands for metal complexes and catalysts used in asymmetric synthesis.

Basic Information

Product Name	1-(2,2-Dichlorocyclopropyl)-1,1,3,3,3-Pentamethylpropanedisiloxane
CAS No.	7087-38-9
Molecular Formula	C11H22Cl2O2Si2
Molecular Weight	313.37 g/mol
Synonyms	1,1,3,3,3-Pentamethyl-1-(2,2-dichlorocyclopropyl)disiloxane; Dichlorocyclopropylpentamethyldisiloxane; 1-(2,2-Dichlorocyclopropyl)pentamethyldisiloxane; Disiloxane, 1-(2,2-dichlorocyclopropyl)-1,1,3,3,3-pentamethyl-; 1-(2,2-Dichlorocyclopropyl)-1,1,3,3,3-pentamethyl-disiloxan; Pentamethyldisiloxane, (2,2-dichlorocyclopropyl)-
EINECS	Contact for details

Quality Control

Our 1-(2,2-Dichlorocyclopropyl)-1,1,3,3,3-Pentamethylpropanedisiloxane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including GC, HPLC, and NMR, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all relevant specifications. Our quality commitment ensures the material meets the high standards required for research and industrial synthesis.

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). Due to its hygroscopic nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent moisture absorption and degradation.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Density (20°C)	~1.08 g/cm³
Refractive Index (n20D)	~1.435

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