Description

Bis-Phenylpropyl Dimethicone is a specialized organomodified silicone fluid, also known as Bis-Phenylpropyl Dimethicone CAS NO 203265-11-6. This compound is valued for its unique combination of silicone fluidity and enhanced refractive index and solvency provided by the phenylpropyl groups. It is primarily sought after by formulators in the personal care and cosmetics industry who require high-performance ingredients for premium skin and hair care products.

Application

• Personal Care Emollients: Acts as a high-refractive index, luxurious emollient in skin creams, lotions, and sunscreens, providing a smooth, non-greasy feel.
• Hair Conditioning Agents: Used in shampoos, conditioners, and hair serums to impart shine, reduce frizz, and improve combability.
• Color Cosmetic Formulations: Serves as a carrier fluid and pigment dispersant in lipsticks, foundations, and eye makeup, enhancing color payoff and wear.
• Skin Care Actives Delivery: Functions as a solvent and penetration enhancer for active ingredients in anti-aging and treatment serums.
• Specialty Lubricants: Employed in niche industrial applications requiring a stable, non-reactive lubricant with specific solvency properties.

Basic Information

Product Name	Bis-Phenylpropyl Dimethicone
CAS No.	203265-11-6
Molecular Formula	Typically CnH2n+2OmSix (Polymeric mixture)
Molecular Weight	Varies by polymer chain length. Contact for details.
Synonyms	Bis-Phenylpropyl Dimethicone; Polydimethylsiloxane, bis(phenylpropyl)-terminated; Phenylpropyl Dimethicone; Bis(3-phenylpropyl) Dimethicone; Silicone fluid PF-2540 (trade name example); Phenyl Modified Silicone Oil; Dow Corning® 556 Fluid (related product category); Cosmetic Grade Phenyl Trimethicone Copolymer
EINECS	Contact for details.

Quality Control

Our Bis-Phenylpropyl Dimethicone is manufactured under strict quality management systems. Each batch is tested to ensure it meets specifications for identity, purity, viscosity, and refractive index. Certificates of Analysis (COA) are available upon request. We can support compliance with relevant standards for cosmetic ingredients, including those outlined by the Personal Care Products Council (PCPC) and international regulations.

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	Clear, colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Refractive Index (25°C)	1.460 - 1.520
Viscosity (25°C)	50 - 5000 cSt (Grade dependent)
Specific Gravity (25°C)	0.95 - 1.10
Assay (Silicone Content)	≥ 98.0%

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