Description

Droxifilcon A CAS NO 58503-81-4 is a high-purity silicone hydrogel monomer, a critical raw material in advanced polymer synthesis. Its primary value lies in enabling the production of next-generation materials with superior oxygen permeability and biocompatibility. This compound is essential for manufacturers in the medical device and specialty contact lens industries seeking to develop high-performance, comfortable products.

Application

• Silicone Hydrogel Contact Lenses: A key monomer for manufacturing soft contact lenses with high oxygen transmissibility (Dk/t) for extended wear.
• Medical Device Polymers: Used in synthesizing biocompatible polymers for ophthalmic implants, drug delivery systems, and other medical components.
• Advanced Biomaterials: Serves as a building block for research and development of new biomaterials requiring specific surface properties and hydration.
• Specialty Coatings: Employed in formulating coatings for medical devices where moisture retention and gas permeability are crucial.
• High-Performance Elastomers: A component in the synthesis of specialty silicones and siloxane-based elastomers for technical applications.

Basic Information

Product Name	Droxifilcon A
CAS No.	58503-81-4
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Droxifilcon A; 3-[3-[3-(Dimethylamino)propyl]sulfanylpropyl]-1,1,1,3,5,5,5-heptamethyltrisiloxane; Trisiloxane, 3-[3-[3-(dimethylamino)propyl]thio]propyl]-1,1,1,3,5,5,5-heptamethyl-; N-[3-(3-Heptamethyltrisiloxanyl)propylthio]propyl]-N,N-dimethylamine; Silicone hydrogel monomer A; DMA-propylthiopropyl heptamethyltrisiloxane
EINECS	Contact for details

Quality Control

Our Droxifilcon A is produced under strict quality management systems to ensure batch-to-batch consistency and high purity suitable for sensitive medical applications. Quality is verified through comprehensive analytical testing, including chromatography and spectroscopy. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from heat, sparks, and open flame. For long-term storage under inert atmosphere, please contact our technical team for specific recommendations.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Specific Impurities (HPLC)	Individually ≤ 0.5%
Water Content (KF)	≤ 0.2%
Refractive Index	Contact for details
Density	Contact for details

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