Product Name: 1,4-Bis[4-(2-methacryloxyethyl)phenylamino]-9,10-anthraquinone

Molecular Formula: C₃₈H₃₄N₂O₆

1. Core Advantages

Ultimate Safety: With a purity exceeding 99.5%, it passes rigorous biocompatibility testing, is non-cytotoxic, non-sensitizing, and perfectly meets the high-quality requirements of ophthalmic lenses.

Optical Revolution: It endows lenses with a signature “premium aqua green” hue, achieving >99% light transmittance while resisting fading and migration for over a decade—solving long-standing pain points in color fastness of traditional dyes.

2. From Technological Breakthroughs to Global Certification

Filling a Domestic Gap: As the first ophthalmic-specific colorant registered in China’s NMPA Master File, it breaks the monopoly of global giants like BASF and Mitsubishi on high-end ophthalmic coloring materials.

Conquering the Top 4 Giants: After undergoing over 20 quality audits by leading brands such as Johnson & Johnson and Bausch + Lomb, RB246 (CAS No.: 121888-69-5) achieved “zero non-conformities” in certification, becoming their core supplier for clear lenses.

Global Delivery Capability: Leveraging clean workshops and precise molecular weight control (error < 0.1%), it has stably delivered over thousands of batches to more than 50 countries over 19 years, reversing the global prejudice that “Chinese materials are unreliable.”

3. Industrial Impact: Reshaping the Global Supply Chain Landscape

Accelerated Domestic Substitution: Since internationally renowned brands adopted RB246 (CAS No.: 121888-69-5), the gap in light transmittance between their products and global standards has narrowed to within 1%. The competitiveness of Chinese high-end materials stems from “ultimate purity + precise adaptation.” When a single colorant meets the biological standards of Johnson & Johnson, the optical requirements of Bausch + Lomb, and the process compatibility of CooperVision, Chinese manufacturing has transformed from a follower to a rule-maker.