Description

4-(Diethoxymethylsilyl)Butyric Acid is a versatile organosilicon compound that functions as a bifunctional linker, combining a reactive silyl ether group with a carboxylic acid moiety. This unique structure makes it a valuable intermediate for introducing silicon-containing functional groups into polymers, surfaces, and other organic matrices. It is primarily used by manufacturers in the silicone industry, advanced materials science, and specialty chemical synthesis for creating hybrid organic-inorganic materials, surface modifiers, and adhesion promoters.

Application

• Silicone Crosslinking Agent: Used as a co-monomer or crosslinker in the synthesis of modified silicone resins and elastomers to enhance specific properties.
• Surface Modification & Coupling Agent: Acts as a silane coupling agent to improve adhesion between organic polymers and inorganic substrates like glass, metals, or minerals.
• Hybrid Material Synthesis: A key precursor for sol-gel processes to create advanced hybrid organic-inorganic coatings, films, and composites with tailored functionalities.
• Pharmaceutical & Agrochemical Intermediates: Serves as a building block in the synthesis of more complex molecules for life science applications.
• Adhesive & Sealant Formulations: Incorporated into formulations to improve moisture-cure characteristics, adhesion, and durability.
• Polymer Functionalization: Used to graft silicon-containing side chains onto polymer backbones, altering surface energy, compatibility, or reactivity.

Basic Information

Product Name	4-(Diethoxymethylsilyl)Butyric Acid
CAS No.	85554-75-2
Molecular Formula	C9H20O4Si
Molecular Weight	220.34 g/mol
Synonyms	Butanoic acid, 4-(diethoxymethylsilyl)-; 4-(Diethoxymethylsilyl)butanoic acid; γ-(Diethoxymethylsilyl)butyric acid; (3-Carboxypropyl)diethoxymethylsilane; Diethoxy(methyl)(4-carboxybutyl)silane; Methyl[4-(carboxy)butyl]diethoxysilane; Silane, diethoxy(4-carboxybutyl)methyl-
EINECS	Contact for details

Quality Control

Our production of 4-(Diethoxymethylsilyl)Butyric Acid adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including assay (by titration or GC), identity confirmation (IR, NMR), and impurity profiling, to ensure consistency and high purity. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting all critical specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation from moisture absorption.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC or Titration)	≥ 95.0%
Water Content (Karl Fischer)	≤ 0.5%

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