Description

2-Methyl-2,4,4,6,6,8,8-Heptakis(1-Methylpropoxy)Cyclooctanetetrasiloxane is a highly functionalized, branched organosilicon compound belonging to the cyclosiloxane family. This specialty chemical is valued for its unique molecular architecture, which imparts excellent compatibility and reactivity in advanced material formulations. It is primarily sought by R&D and production teams in the silicone, polymer, and specialty coatings industries for developing high-performance additives, cross-linking agents, and surface modifiers.

Application

• Silicone Resin & Elastomer Modification: Acts as a reactive intermediate or cross-linker to enhance thermal stability, flexibility, and mechanical properties.
• Surface Treatment & Coupling Agent: Used to modify surface energy and improve adhesion between organic polymers and inorganic substrates like glass or metals.
• Specialty Additive for Coatings: Imparts mar-resistance, slip, and water repellency to high-performance industrial and protective coatings.
• Release Agent Formulations: Serves as a key component in manufacturing non-stick and easy-release coatings for molding and industrial processes.
• Polymer Synthesis: Utilized as a building block or chain extender in the synthesis of novel hybrid organic-inorganic copolymers.
• Lubricant & Grease Additive: Enhances the performance characteristics of specialty lubricants under extreme temperature conditions.

Basic Information

Item	Detail
Product Name	2-Methyl-2,4,4,6,6,8,8-Heptakis(1-Methylpropoxy)Cyclooctanetetrasiloxane
CAS No.	70969-52-7
Molecular Formula	C43H94O12Si8
Molecular Weight	1040.0 g/mol (approx.)
Synonyms	Cyclooctasiloxane, 2-methyl-2,4,4,6,6,8,8-heptakis(2-methylpropoxy)-; Heptaisobutoxy Methylcyclooctasiloxane; Methylheptaisobutoxycyclooctasiloxane; Cyclic Siloxane Octamer; Isobutoxy-Functional Cyclosiloxane; Organofunctional Cyclic Siloxane; Reactive Cyclosiloxane; CAS 70969-52-7
EINECS	Contact for details

Quality Control

Our production of 2-Methyl-2,4,4,6,6,8,8-Heptakis(1-Methylpropoxy)Cyclooctanetetrasiloxane adheres to a rigorous quality management system. Every batch is analyzed using advanced techniques like GC, NMR, and FT-IR to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting all critical parameters are provided and can be tailored to meet specific customer or regulatory 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). This material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 95.0%
Refractive Index (n20D)	1.410 - 1.430
Density (g/mL, 20°C)	0.95 - 1.05
Water Content (KF)	≤ 0.5%

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