Triss (CAS#: 17096-07-0) and Sigma (CAS#: 69861-02-5) are the most commonly used silicon-containing materials for silicone hydrogel contact lenses. Both international companies Johnson & Johnson and British manufacturer Sauflon use these two monomer materials.

Pharnorcia has 11 years of experience in the production and export of Triss (CAS#: 17096-07-0) and Sigma (CAS#: 69861-02-5) these two materials, stable quality, reasonable price. We are the most popular Supplier of special materials for silicone hydrogel contact lenses.

As a professional supplier, through dozens of evaluations and promotions by international first-class enterprise experts, multiple verifications and audits by major international companies, Pharnorcia has formed a scientific and complete quality control system and established international industry standard product quality standards. Dozens of international companies have identified Pharnorcia as their designated global supplier.Pharnorcia has been offering an extensive range of high purity optical grade materials and biomaterials for Silicone Hydrogel Contact lens and Intraocular Lens (IOL) for more than 10 years. We offer custom service specialized for you , welcome to contact us and get our best offer.