Description

2 4 6-Trimethylcyclotrisiloxane 99 is a high-purity, cyclic siloxane monomer characterized by its highly volatile nature. This compound serves as a crucial building block in the synthesis of specialized silicone polymers and oligomers, enabling precise control over molecular architecture and final material properties. It is essential for manufacturers in the silicone elastomer, resin, and specialty fluids industries who require a reliable, high-quality precursor for advanced material development.

Application

• Silicone Polymer Synthesis: A key monomer for the controlled ring-opening polymerization (ROP) to produce polydimethylsiloxanes (PDMS) with specific molecular weights and architectures.
• Functional Silicone Precursor: Used to introduce reactive sites or modify properties in silicone copolymers and hybrid materials.
• Release Agents & Lubricants: Serves as an intermediate in the production of high-performance silicone-based release coatings and lubricants.
• Personal Care & Cosmetics: An intermediate for manufacturing volatile silicone fluids (cyclomethicones) used in antiperspirants, hair conditioners, and skin care products for a non-greasy feel.
• Electronic Encapsulants & Potting: Used in the synthesis of silicones for protecting sensitive electronic components due to their excellent dielectric and thermal stability.
• Adhesives & Sealants: A building block for silicone adhesives and sealants requiring specific viscoelastic properties and durability.
• Research & Development: A valuable reagent for academic and industrial R&D focused on novel organosilicon chemistry and material science.

Basic Information

Product Name	2 4 6-Trimethylcyclotrisiloxane 99
CAS No.	13269-39-1
Molecular Formula	C9H24O3Si3
Molecular Weight	264.55 g/mol
Synonyms	Hexamethylcyclotrisiloxane, D3; 1,3,5-Trimethyl-1,3,5-tris(trimethylsiloxy)cyclotrisiloxane; Cyclotrisiloxane, 2,4,6-trimethyl-2,4,6-tris(trimethylsiloxy)-; 2,4,6-Trimethyl-2,4,6-tris(trimethylsiloxy)cyclotrisiloxane; HMCTS; Cyclic trimethylsiloxane trimer; Hexamethylcyclotrisiloxane (common name)
EINECS	Contact for details

Quality Control

Our 2 4 6-Trimethylcyclotrisiloxane 99 is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed to confirm compliance with established specifications. Certificates of Analysis (COA) documenting purity, identity, and key physical parameters are provided and available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and open flame. Due to its highly volatile nature, ensure containers are properly sealed when not in use. Recommended storage temperature: 15-25°C.

Specification

Item	Specification
Appearance	Colorless clear liquid
Identification (IR)	Conforms
Assay (GC)	≥ 99.0%
Water Content (KF)	≤ 0.05%
Refractive Index (n20D)	1.388 - 1.392
Density (20°C)	0.95 - 0.97 g/mL

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