Description

Silane, Diphenylbis(Phenylethynyl)- CAS NO 18784-61-7 is a specialized organosilicon compound featuring a central silicon atom bonded to two phenyl groups and two phenylethynyl moieties. This unique molecular architecture makes it a valuable highly reactive intermediate and cross-linking agent in advanced material synthesis. It is primarily sought after by R&D and production teams in the semiconductor, aerospace, and high-performance polymer industries for developing heat-resistant and dielectric materials.

Application

• As a key precursor or cross-linking agent in the synthesis of high-temperature resistant silicone resins and polymers.
• In the formulation of advanced encapsulants and underfill materials for microelectronics and semiconductor packaging.
• For the development of ceramic precursor polymers used in aerospace and defense applications.
• As a modifying agent to enhance the thermal and mechanical properties of specialty adhesives and composite matrices.
• In research for next-generation low-k dielectric materials in integrated circuit fabrication.
• Potential use in the synthesis of molecular scaffolds and ligands for catalytic and organometallic chemistry.

Basic Information

Product Name	Silane, Diphenylbis(Phenylethynyl)- CAS NO 18784-61-7
CAS No.	18784-61-7
Molecular Formula	C28H20Si
Molecular Weight	384.55 g/mol
Synonyms	Diphenylbis(phenylethynyl)silane; Bis(phenylethynyl)diphenylsilane; 1,1-Diphenyl-2,2-bis(phenylethynyl)silane; Silane, diphenylbis(phenylethynyl)-; Diphenyl-di(phenylethynyl)silane; (Phenylethynyl)diphenylsilane; DPSPE
EINECS	Contact for details

Quality Control

Our production of Diphenylbis(Phenylethynyl)Silane adheres to stringent quality protocols to ensure batch-to-batch consistency and reliability. Each lot is characterized using advanced analytical techniques including NMR, HPLC, and GC to verify identity and purity. Certificates of Analysis (COA) documenting all critical parameters are provided and available upon request to support your quality assurance and regulatory needs.

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 moisture-sensitive (hygroscopic) and should be handled under an inert atmosphere (e.g., nitrogen or argon) to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details

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