Description

Dimethylphenylsilanol is a versatile organosilicon intermediate characterized by its reactive silanol (Si-OH) group and phenyl substituent. This compound is crucial for introducing dimethylphenylsilyl groups into target molecules, enabling the synthesis of advanced silicone polymers and functional materials. It is essential for manufacturers in the pharmaceutical, agrochemical, and specialty silicone industries seeking to enhance product performance through tailored siloxane chemistry. The product is supplied under the identifier CAS NO 5272-18-4.

Application

• Silicone Resin & Polymer Synthesis: A key monomer or chain-terminating agent for producing phenyl-modified silicone resins, which offer superior thermal stability, UV resistance, and compatibility with organic materials.
• Pharmaceutical Intermediates: Used in the synthesis of active pharmaceutical ingredients (APIs) and prodrugs where the silyl group acts as a protecting group or modifies pharmacokinetic properties.
• Agrochemical Formulations: Serves as a building block for silicone-based adjuvants, surfactants, and release agents that improve the efficacy and rainfastness of pesticide formulations.
• Surface Treatment & Coupling Agents: Functions as a precursor for creating adhesion promoters and surface modifiers that enhance bonding between inorganic fillers and organic polymer matrices in composites.
• Personal Care & Cosmetics: Employed in the manufacture of specialty silicones for hair care and skincare products, providing unique sensory attributes and film-forming capabilities.
• Electronic Encapsulants: Used in the production of high-performance silicone gels and elastomers for potting and protecting sensitive electronic components.

Basic Information

Product Name	Dimethylphenylsilanol
CAS No.	5272-18-4
Molecular Formula	C8H12OSi
Molecular Weight	152.27 g/mol
Synonyms	Dimethyl(phenyl)silanol; Hydroxydimethylphenylsilane; Phenyl Dimethyl Silanol; (Dimethylhydroxysilyl)benzene; Dimethylphenylhydroxysilane; DMPS; Silanol, dimethylphenyl-; NSC 163083
EINECS	226-092-4

Quality Control

Our Dimethylphenylsilanol is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including chromatographic purity assays and identity confirmation. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting key parameters such as assay, water content, and specific impurities. We support compliance with global regulatory frameworks, including REACH.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent absorption of atmospheric moisture, which can compromise product quality and reactivity. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%

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