Description

Dimethyl-(p-Tolyl)Silanol is a versatile organosilicon compound featuring a silanol group and a tolyl substituent. This structure makes it a valuable intermediate in the synthesis of more complex siloxanes and silicone polymers, offering a reactive handle for further chemical modification. It is primarily sought by manufacturers in the silicone industry for applications requiring specific hydrophobic, thermal, or release properties.

Application

• Silicone Resin & Polymer Synthesis: A key monomer or intermediate for creating specialty silicone resins with enhanced thermal stability and mechanical properties.
• Crosslinking Agent: Used in formulations for room-temperature vulcanizing (RTV) silicones and other crosslinked silicone networks.
• Surface Modification: Acts as a coupling agent or surface treatment chemical to impart hydrophobic characteristics to inorganic materials like silica or glass.
• Pharmaceutical & Agrochemical Intermediates: Serves as a building block in the synthesis of active ingredients or functional excipients.
• Adhesive & Sealant Formulations: Incorporated to modify adhesion, cure profiles, and flexibility in high-performance silicone-based adhesives and sealants.
• Release Coatings: Used in the production of silicone release liners for labels, tapes, and composite materials.

Basic Information

Product Name	Dimethyl-(p-Tolyl)Silanol
CAS No.	17920-15-9
Molecular Formula	C9H14OSi
Molecular Weight	166.29 g/mol
Synonyms	(4-Methylphenyl)dimethylsilanol; p-Tolyldimethylsilanol; Dimethyl(p-tolyl)silanol; Dimethyl(4-methylphenyl)silanol; Silanol, dimethyl(4-methylphenyl)-; 4-Methylbenzenemethanol, α,α-dimethyl- (related); DMS-OH (p-Tolyl); (p-Tolyl)dimethylsilanol
EINECS	Contact for details

Quality Control

Our Dimethyl-(p-Tolyl)Silanol is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including assay by GC or HPLC and identity confirmation by FT-IR and NMR spectroscopy, to ensure high purity and consistency. A Certificate of Analysis (COA) detailing all relevant specifications is provided with every shipment to guarantee compliance with your technical 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). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to prevent moisture absorption, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or low-melting solid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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