Description

3-((Heptacyclopentylpentacyclooctasiloxane is a high-purity, complex organosilicon compound characterized by its unique polycyclic siloxane structure. This advanced chemical is engineered to deliver exceptional performance as a key intermediate or functional additive in demanding specialty applications. It is primarily sought after by manufacturers in the advanced materials, specialty polymers, and electronics sectors for its ability to impart specific thermal, rheological, or surface-modifying properties.

Application

• As a high-performance silicone resin precursor for coatings with enhanced thermal stability and chemical resistance.
• As a specialized crosslinking agent or chain extender in the synthesis of advanced polyorganosiloxanes and hybrid polymers.
• As a functional additive in electronic encapsulants and potting compounds to manage stress and improve dielectric properties.
• As a key intermediate in the production of release agents, surfactants, and other silicone-based specialty chemicals.
• In research and development for novel materials, including liquid crystal polymers and nanostructured composites.

Basic Information

Product Name	3-((Heptacyclopentylpentacyclooctasiloxane
CAS No.	312693-41-7
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Heptacyclopentylpentacyclooctasiloxane; Polyhedral Oligomeric Silsesquioxane derivative; POSS derivative; Organosilicon Cage Compound; Cyclopentyl-substituted Silsesquioxane; Complex Siloxane; Silicone Resin Intermediate
EINECS	Contact for details

Quality Control

Our production of 3-((Heptacyclopentylpentacyclooctasiloxane adheres to a stringent quality management system to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including chromatographic and spectroscopic methods, to verify identity and purity against established specifications. Certificates of Analysis (COA) detailing all test results are provided and available upon request to support your quality assurance protocols.

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 strong oxidizing agents, strong acids, and strong bases. The container must be kept tightly sealed to prevent moisture absorption and potential contamination.

Specification

Item	Specification
Appearance	White to off-white powder or solid
Identification (IR)	Conforms to reference spectrum
Purity (HPLC)	≥ 95.0%
Loss on Drying	≤ 1.0%

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