Description

Dimethylsiloxane, Heptylmethyl Silsesquioxane, Methoxy-Term is a specialized organosilicon compound that combines the properties of a siloxane backbone with heptyl and methoxy functional groups. This unique structure provides excellent compatibility with organic systems and acts as a versatile reactive intermediate or performance additive. It is particularly valuable for industries requiring advanced surface modification, release properties, or tailored polymer networks. Key sectors that utilize this material include specialty coatings, advanced adhesives & sealants, and high-performance elastomers.

Application

• As a reactive intermediate in the synthesis of custom silicone resins and hybrid polymers.
• As a surface modifier or coupling agent to improve adhesion and compatibility in composite materials.
• In the formulation of high-performance, low-surface-energy coatings and release agents.
• As a key component in specialty adhesives and sealants requiring enhanced flexibility and chemical resistance.
• For modifying the rheological properties and stability of advanced lubricants and greases.
• In the development of tailored elastomers with specific mechanical and thermal properties.

Basic Information

Product Name	Dimethylsiloxane, Heptylmethyl Silsesquioxane, Methoxy-Term
CAS No.	68440-80-2
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Heptylmethylsilsesquioxane Methoxy-Terminated; Methoxy-Terminated Heptylmethyl Polyhedral Oligomeric Silsesquioxane; Heptylmethyl-POSS Methoxy; POSS Heptylmethyl Methoxy; Methoxy-Functionalized Heptylmethyl Silsesquioxane; Heptylmethyl T8 Silsesquioxane Methoxy; Organosilicon Sesquioxide Heptylmethyl Methoxy
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. Production follows strict protocols to guarantee batch-to-batch consistency and purity. Certificates of Analysis (COA) detailing key parameters such as assay, functional group content, and impurity profiles are available upon request. We are committed to meeting the specific quality requirements of our global B2B partners.

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	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (NMR/Si)	≥ 95.0%
Methoxy Content	Contact for details
Volatile Matter	≤ 2.0%

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