INCI Name :Trimethyl Pentaphenyl Trisiloxane

Model name: NV-PC405

Chemical Information

Main Composition: 1,1,1,5,5,5-hexamethyl-3,3-diphenyl-trisiloxane (modified with additional phenyl substitution)

Molecular Structure:Ph3Si-O-Si(Ph)2-O-Si(Me)3

Molecular Weight: 546.9

Chemical Character: integrates diphenyl units into the dimethylsiloxane chain, which significantly boosts the refractive index compared to standard dimethicone.

Cas No.:3390-61-2

Product Description:

NV-PC405 is a high-purity, specific-structure phenyl silicone fluid characterized by an ultra-high refractive index of 1.58. Its unique molecular configuration, containing five phenyl groups on a trisiloxane backbone, provides the highest level of brilliance, thermal stability, and luxury skin feel among cosmetic silicones.

Typical Properties:

Appearance:Colorless to light straw, high-clarity liquid

Viscosity (25°C, cSt):160 – 190

Refractive Index :1.575 – 1.585

Flash Point (Closed cup, °C):> 220

Specific Gravity (25°C):1.06 – 1.10

Key Benefits & Features

Maximum Brilliance: Provides the highest refractive index available in silicone fluids, creating a "diamond-like" gloss in lipsticks and hair serums.

Superior Thermal Stability: Excellent resistance to oxidation and high temperatures, making it ideal for heat-styling hair products.

Enhanced Film Substantivity: The heavy molecular structure ensures the film stays on the skin or hair longer, providing durable luster.

Low Volatility: Extremely low vapor pressure ensures long-lasting performance in formulations.

Luxurious Texture: Offers a rich, cushiony feel that enhances the perceived value of premium skin care.

Applications:

High-End Color Cosmetics: Premium lipsticks, lip glazes, and "glass-skin" liquid highlighters.

Hair Care Therapy: Professional hair oils, heat protection serums, and gloss-enhancing sprays.

Premium Skin Care: Anti-aging elixirs, luxury facial oils, and "blurring" primers.

Sun Care: Boosts the efficiency of UV filters and provides a glowy finish.

Handling & Precautions

Safety: Non-irritating to skin and eyes under normal use.

Operational Safety: Due to its high viscosity and density, ensure thorough mixing when incorporating into lower-density oil phases.

Storage: Store in a cool, dry place. Avoid prolonged exposure to direct sunlight to maintain the clarity of the high-phenyl fluid.

Packaging & Shelf Life

Packaging: 25kg pails, 200kg drums, or custom laboratory-grade packaging.

Shelf Life: 36 months from the date of manufacture.

Note: Due to its high stability, the product typically maintains its 1.58 refractive index well beyond the shelf life if kept sealed.