Description

1,3-Dibutyl-1,1,3,3-tetramethyldisilazane is a high-purity organosilicon compound, specifically a disilazane derivative, valued for its role as a versatile silylating agent and chemical intermediate. Its primary commercial value lies in its ability to introduce protective groups in complex organic syntheses and to modify surface properties in advanced materials. This chemical is essential for R&D and production in the pharmaceutical, agrochemical, and specialty polymer industries, where precise molecular control is critical.

Application

• Pharmaceutical Intermediate: Used as a key silylating agent in the synthesis of active pharmaceutical ingredients (APIs) to protect reactive functional groups like alcohols and amines.
• Agrochemical Synthesis: Serves as a building block in the production of advanced pesticides and herbicides, enabling the creation of more stable and effective formulations.
• Surface Modification Agent: Applied in material science to functionalize silica, glass, and other inorganic surfaces, altering their hydrophobicity and reactivity for coatings and composites.
• Polymer & Resin Chemistry: Acts as a cross-linking agent or chain terminator in the production of silicones and other specialty polymers to control molecular weight and thermal stability.
• Chemical Vapor Deposition (CVD) Precursor: Utilized in the semiconductor and electronics industries as a precursor for depositing silicon nitride or silicon carbonitride thin films.
• Laboratory Reagent: Employed in analytical chemistry and research laboratories for derivatization processes in gas chromatography (GC) and mass spectrometry (MS).

Basic Information

Product Name	1,3-Dibutyl-1,1,3,3-tetramethyldisilazane
CAS No.	82356-80-7
Molecular Formula	C₁₂H₃₁NSi₂
Molecular Weight	245.56 g/mol
Synonyms	1,3-Dibutyltetramethyldisilazane; Dibutyltetramethyldisilazane; N-(Butyldimethylsilyl)-N-butyl-1,1-dimethylsilanamine; Hexamethyldisilazane, dibutyl derivative; HMDS, dibutyl derivative; Disilazane, 1,3-dibutyl-1,1,3,3-tetramethyl-; N,N-Bis(butyldimethylsilyl)amine
EINECS	Contact for details

Quality Control

Our 1,3-Dibutyl-1,1,3,3-tetramethyldisilazane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including GC, NMR, and Karl Fischer titration, to ensure high purity and consistency. Certificates of Analysis (COA) detailing identity, assay, and impurity profiles are provided with every shipment 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 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 oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.1%
Refractive Index (n20/D)	1.440 - 1.445
Density (20°C)	0.80 - 0.85 g/mL

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