Description

Dibutyltrimethylsilylphosphate is a specialized organosilicon phosphate ester compound, identified by CAS NO 18047-96-6. This chemical is valued for its unique properties as a silylating agent and reactive intermediate in advanced synthesis. It is primarily required by manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries for processes involving protection, derivatization, and catalysis.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs), particularly for introducing phosphate or silyl protecting groups.
• Agrochemical Synthesis: Serves as a key building block in the production of advanced pesticides and herbicides.
• Polymer Modification: Acts as a cross-linking agent or functional monomer in the development of specialty silicones and flame-retardant polymers.
• Analytical Chemistry: Employed as a derivatization agent in gas chromatography (GC) and mass spectrometry (MS) for the analysis of compounds containing active hydrogens.
• Catalysis & Ligand Synthesis: Utilized in the preparation of organometallic catalysts and phosphorus-based ligands for asymmetric synthesis.
• Surface Treatment: Applied in the formulation of coatings and adhesives to modify surface energy and adhesion properties.

Basic Information

Product Name	Dibutyltrimethylsilylphosphate
CAS No.	18047-96-6
Molecular Formula	C11H27O4PSi
Molecular Weight	282.39 g/mol
Synonyms	Dibutyl (trimethylsilyl) phosphate; Trimethylsilyl dibutyl phosphate; Phosphoric acid, dibutyl trimethylsilyl ester; O,O-Dibutyl O-(trimethylsilyl) phosphate; DBTSiP; TMS-Dibutyl phosphate
EINECS	Contact for details

Quality Control

Our Dibutyltrimethylsilylphosphate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including assay by GC or HPLC and identification by FT-IR and NMR, to ensure high purity and consistency. Certificates of Analysis (COA) documenting full specifications are available upon request to support your quality assurance and regulatory compliance 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). This product is hygroscopic (moisture-sensitive) and should be handled under an inert atmosphere (e.g., nitrogen or argon) to prevent degradation. Keep away from strong acids and organic solvents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Identification (NMR)	Conforms to structure
Assay (GC/HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Density (at 20°C)	~1.0 g/mL
Refractive Index (n20D)	~1.430

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