Description

2-[(Dihydroxymethylsilyl)Oxy]Propionic Acid CAS NO 99948-86-4 is a specialized organosilicon compound that serves as a versatile building block and coupling agent in advanced material synthesis. Its unique bifunctional structure, featuring both a silyl ether and a carboxylic acid group, enables it to act as a critical linker between organic polymers and inorganic surfaces. This product is essential for R&D chemists and formulation scientists in the silicone, polymer, and specialty coatings industries seeking to enhance material compatibility, adhesion, and surface modification.

Application

• Silicone Polymer Modification: Used as a reactive intermediate to introduce carboxylic acid functionality into silicone backbones, improving compatibility with polar substrates.
• Adhesion Promoter for Coatings: Acts as a coupling agent in primers and coatings to enhance adhesion between organic resins (e.g., epoxies, polyurethanes) and inorganic surfaces like glass, metals, or minerals.
• Surface Treatment Agent: Employed to functionalize silica, glass fibers, and other fillers to improve dispersion and interfacial bonding within composite materials.
• Crosslinking Agent: Serves as a potential crosslinker in hybrid organic-inorganic polymer networks, contributing to tailored mechanical and thermal properties.
• Pharmaceutical & Cosmetic Intermediates: Utilized in the synthesis of specialized silicone-based derivatives for controlled-release systems or personal care product formulations.
• Sealant and Elastomer Formulations: Incorporated to modify the properties of silicone sealants and elastomers, influencing cure characteristics and final product performance.

Basic Information

Product Name	2-[(Dihydroxymethylsilyl)Oxy]Propionic Acid
CAS No.	99948-86-4
Molecular Formula	C5H12O5Si
Molecular Weight	180.23 g/mol
Synonyms	2-[(Dihydroxymethylsilyl)oxy]propanoic acid; Dihydroxymethylsilyloxypropionic Acid; Propanoic acid, 2-[(dihydroxymethylsilyl)oxy]-; (Dihydroxymethylsilyl) 2-hydroxypropionate; Silanemethanol, dihydroxy-, 2-propionate; 2-(Dihydroxymethylsilyloxy)propionic Acid; α-(Dihydroxymethylsilyloxy)propionic Acid
EINECS	Contact for details

Quality Control

Our production of 2-[(Dihydroxymethylsilyl)Oxy]Propionic Acid adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including assay by titration, identification by FT-IR, and impurity profiling. Certificates of Analysis (COA) detailing all specifications and test results 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 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 degradation from atmospheric moisture. Keep away from incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to reference spectrum
Assay (Titration)	≥ 95.0%
Water Content (KF)	≤ 1.0%
Refractive Index (n20D)	1.430 - 1.450
Density (20°C)	1.20 - 1.30 g/cm³

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