For professionals in the chemical and pharmaceutical sectors, understanding the specifications and applications of key raw materials is fundamental. 1,3-Dichlorotetramethyldisiloxane (CAS 2401-73-2) is a significant organosilicon compound that serves as a versatile building block and intermediate. This article aims to provide a clear overview of its properties, explore its critical applications, and guide potential buyers on how to procure this essential chemical effectively.

Chemical Identity and Key Properties

1,3-Dichlorotetramethyldisiloxane is identified by its CAS number 2401-73-2 and has a molecular formula of C4H12Cl2OSi2. It is typically supplied as a clear liquid. Its molecular weight is approximately 203.22 g/mol. Key physical and chemical properties that are critical for its handling and application include:

  • Appearance: Clear liquid
  • Boiling Point: Approximately 138 °C
  • Melting Point: -37 °C
  • Flash Point: Around 15 °C, indicating it is flammable.
  • Density: Approximately 1.039 g/mL.
  • Purity: Typically offered at 95% or 97% minimum purity, crucial for its use as a pharmaceutical intermediate or in sensitive synthesis.
  • Sensitivity: It is moisture-sensitive and reacts with water and protic solvents, necessitating careful storage under nitrogen.

Primary Application Areas

The utility of 1,3-Dichlorotetramethyldisiloxane spans across several industries, with its primary roles being:

  • Silicone Synthesis: As a difunctional silane, it is a cornerstone in the synthesis of various silicone polymers and specialty siloxane fluids. It facilitates the formation of the siloxane backbone, enabling the creation of materials with tailored properties for coatings, sealants, and elastomers.
  • Pharmaceutical Intermediates: In the pharmaceutical industry, it acts as a valuable intermediate in the complex synthetic pathways for producing APIs. Its reactive chlorine atoms can be selectively replaced or used to introduce specific functional groups into target molecules, contributing to drug discovery and manufacturing. We are a reliable supplier for these high-value intermediate needs.
  • Chemical Additives: It can also function as a chemical additive in various formulations, potentially enhancing properties like surface tension reduction or acting as a reactive component in curing processes.

How to Procure 1,3-Dichlorotetramethyldisiloxane Effectively

When seeking to buy 1,3-Dichlorotetramethyldisiloxane, prospective buyers should prioritize reliability, quality, and competitive pricing. Consider the following steps:

  • Identify Reputable Suppliers: Look for established chemical manufacturers and distributors with a proven track record in organosilicon compounds. We are a dedicated manufacturer committed to quality and consistency.
  • Request Detailed Specifications and CoAs: Always obtain the Certificate of Analysis (CoA) to verify purity and other critical parameters.
  • Inquire About Pricing and Bulk Discounts: Contact us for current pricing and explore discounts for bulk purchases, which are common for industrial intermediates.
  • Understand Handling and Storage: Given its moisture sensitivity, ensure you have the appropriate facilities and procedures for receiving and storing this chemical.
  • Leverage Manufacturer Support: Partnering with a direct manufacturer like us offers advantages in technical support, lead times, and direct communication to resolve any queries.

For those requiring high-quality 1,3-Dichlorotetramethyldisiloxane, we offer a dependable supply. Contact us today for a quote and to learn more about how our products can meet your specific chemical intermediate requirements.