Description

Dotriacontamethylcyclohexadecasiloxane is a high molecular weight, cyclic siloxane oligomer, also known as a D16 cyclic volatile methylsiloxane (cVMS). This compound is valued for its exceptional thermal stability, low surface tension, and high spreading coefficient, making it a versatile functional fluid and intermediate. It is primarily sought by manufacturers in the personal care, cosmetics, and industrial sectors for its unique combination of volatility and silicone performance.

Application

• As a volatile carrier and emollient in personal care products such as antiperspirants, deodorants, and skin creams.
• Key ingredient in cosmetic formulations for hair conditioning agents and shine-enhancing products.
• Used as a release agent and lubricant in various molding and manufacturing processes.
• Intermediate in the synthesis of silicone polymers and copolymers with tailored properties.
• Functional fluid in heat transfer and dielectric applications due to its thermal stability.
• Component in protective coatings to provide water repellency and surface smoothing.

Basic Information

Product Name	Dotriacontamethylcyclohexadecasiloxane
CAS No.	150026-95-2
Molecular Formula	C32H96O16Si16
Molecular Weight	1185.88 g/mol
Synonyms	Cyclohexadecasiloxane, dotriacontamethyl-; D16 Cyclic Siloxane; Hexadecamethylcyclooctasiloxane (common misnomer); Cyclic Volatile Methylsiloxane (cVMS) D16; Octasiloxane, 1,1,3,3,5,5,7,7,9,9,11,11,13,13,15,15-hexadecamethyl-; Decamethylcyclopentasiloxane (D5) homolog; Cyclomethicone D16; SH 244
EINECS	Contact for details

Quality Control

Our Dotriacontamethylcyclohexadecasiloxane is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including Gas Chromatography (GC), to ensure high purity and consistency. Certificates of Analysis (COA) detailing identity, assay, and impurity profiles are available upon request to support your quality assurance and regulatory compliance needs.

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 strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless clear liquid
Identification (IR)	Conforms
Assay (GC)	≥ 95.0%
Refractive Index (20°C)	1.390 - 1.395
Specific Gravity (25°C)	0.950 - 0.980

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