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DODECAMETHYLPENTASILOXANE

January 15, 2026

Coreychem Launches High-Purity Dodecamethylpentasiloxane (CAS 141-63-9)

Coreychem is pleased to announce the availability of Dodecamethylpentasiloxane (CAS No. 141-63-9), a high-performance silicone fluid supplied as a colorless, transparent liquid with a purity exceeding 95%. This product is designed to meet the stringent requirements of industrial, cosmetic, and specialty chemical applications where consistency, stability, and performance are critical.

Product Overview

Dodecamethylpentasiloxane is a linear volatile silicone fluid belonging to the polydimethylsiloxane (PDMS) family. It is characterized by low surface tension, excellent spreading properties, and good chemical stability, making it an important functional ingredient across multiple industries.

Chemical Name: Dodecamethylpentasiloxane

CAS No.: 141-63-9

Appearance: Colorless, transparent liquid

Purity: ≥95%

Physical and Chemical Properties

  • Molecular Formula: C₁₂H₃₆O₄Si₅

  • Molecular Weight: Approx. 384.8 g/mol

  • Odor: Odorless or slightly characteristic

  • Solubility: Insoluble in water; miscible with most organic solvents and silicone oils

  • Viscosity: Low viscosity, enabling excellent flow and spreading

  • Surface Tension: Very low, providing superior wetting performance

  • Volatility: Moderate volatility with fast evaporation

  • Chemical Stability: Stable under normal conditions; resistant to oxidation and hydrolysis

     

Product Specifications

Item Specification
Appearance Colorless, transparent liquid
Purity ≥95%
Moisture Content ≤0.1%
Acidity (as HCl) ≤10 ppm
Refractive Index (25°C) Typical for linear siloxanes
Density (25°C) Approx. 0.95 g/cm³

Applications

Dodecamethylpentasiloxane is widely used as a functional silicone fluid and processing aid in the following fields:

Cosmetics & Personal Care

  • Carrier fluid for skin care and hair care formulations

  • Provides smooth sensory feel, non-greasy touch, and fast drying

  • Improves spreadability and volatility in creams, lotions, and serums

Industrial Applications

  • Used as a release agent and lubricant in precision manufacturing

  • Processing aid in rubber, plastic, and elastomer production

  • Component in polishing agents and surface treatment formulations

Chemical & Specialty Applications

  • Intermediate for silicone modification and formulation

  • Used in laboratory and industrial R&D

  • Solvent or diluent for silicone-based blends

Storage Conditions

  • Store in a cool, dry, and well-ventilated area

  • Keep containers tightly closed when not in use

  • Protect from direct sunlight, heat sources, and open flames

  • Recommended storage temperature: ambient conditions

  • Keep away from strong oxidizing agents

Packaging Options

  • 25 kg plastic drums

  • 200 kg steel or HDPE drums

  • 1,000 kg IBC tanks

  • Bulk supply available upon request

Samples and further technical data can be provided upon request.
More details, just contact: Cherry@coreychem.com

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