Description

Hexasiloxane, 1,1,3,3,5,5,7,7,9,9,11,11-Dodecamethyl- is a high-purity, linear organosilicon compound belonging to the volatile methylsiloxane (VMS) family, valued for its exceptional thermal stability, low surface tension, and high volatility. This product is a critical intermediate and functional fluid for advanced manufacturing, offering reliable performance under demanding conditions. It is essential for industries requiring precise silicone chemistry, including personal care, electronics, and high-performance lubricants. CAS No. 995-82-4.

Application

• Personal Care & Cosmetics: Acts as a volatile carrier and emollient in antiperspirants, deodorants, and skin care products, providing a dry, non-greasy feel.
• Release Agents & Molding: Used as a high-performance mold release agent for plastics, rubber, and composite materials.
• Electronics Manufacturing: Serves as a heat transfer fluid or a carrier solvent in thermal interface materials and electronic coatings.
• Lubricants & Greases: Functions as a base fluid or additive in specialty lubricants requiring wide temperature range operation and oxidation resistance.
• Chemical Synthesis: Employed as a key intermediate or protecting agent in the synthesis of more complex siloxane polymers and dendrimers.
• Water Repellents: Used in formulations for fabric, leather, and stone treatments to impart hydrophobic properties.
• Defoamers: An effective component in defoamer formulations for various industrial processes.
• Research & Development: A high-purity standard for analytical testing and material science research.

Basic Information

Product Name	Hexasiloxane, 1,1,3,3,5,5,7,7,9,9,11,11-Dodecamethyl-
CAS No.	995-82-4
Molecular Formula	C12H36O5Si6
Molecular Weight	404.86 g/mol
Synonyms	Dodecamethylpentasiloxane; MD5M; Hexamethyldisiloxane trimer; L2; Polydimethylsiloxane trimethylsiloxy terminated (n=2); Decamethyltetrasiloxane, oxydi-; 1,1,1,3,3,5,5,7,7,9,9,11,11-Dodecamethylhexasiloxane; Linear MD5M
EINECS	213-637-2

Quality Control

Our Hexasiloxane, 1,1,3,3,5,5,7,7,9,9,11,11-Dodecamethyl- is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including GC, NMR, and Karl Fischer titration, to ensure high purity and consistency. Certificates of Analysis (COA) detailing purity, identity, and key physical parameters are provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. This material is highly volatile; ensure containers are properly sealed when not in use.

Specification

Item	Specification
Appearance	Colorless clear liquid
Identification (IR)	Conforms to standard
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.05%
Refractive Index (n20D)	1.389 - 1.393
Density (20°C)	0.913 - 0.923 g/mL
Flash Point	> 60 °C

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