Description

Fluorever Oba CAS NO 131015-96-8 is a high-performance optical brightening agent (OBA) belonging to the stilbene derivative class. This compound is engineered to enhance the whiteness and brightness of materials by absorbing ultraviolet light and re-emitting it as visible blue light. It is an essential additive for manufacturers seeking to achieve superior visual appeal and perceived quality in their finished products. Key industries that utilize this agent include paper production, polymer manufacturing, textile finishing, and detergent formulation.

Application

• Paper Manufacturing: Used as a fluorescent whitening agent in high-quality writing, printing, and specialty papers to achieve brilliant whiteness and opacity.
• Polymer & Plastics: Incorporated into polymers, synthetic fibers, and engineering plastics to counteract yellowing and improve brightness, especially in PVC, polyolefins, and ABS.
• Textile & Laundry Care: Applied in fabric finishes and laundry detergents to make white fabrics appear brighter and colored fabrics more vivid.
• Coatings & Inks: Enhances the brightness and visual impact of paints, varnishes, and printing inks.
• Cosmetics & Personal Care: Used in formulations where a brightening or whitening effect is desired, such as in certain soaps and beauty products.
• Advanced Materials: Potential applications in optical materials and security printing due to its fluorescent properties.

Basic Information

Product Name	Fluorever Oba
CAS No.	131015-96-8
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	4,4'-Bis[(4,6-dianilino-1,3,5-triazin-2-yl)amino]stilbene-2,2'-disulfonic acid; Fluorescent Brightener 220; Tinopal CBS-X; Blankophor BSU; 2,2'-(1,2-Ethenediyl)bis[5-[[4-[bis(2-hydroxyethyl)amino]-6-(phenylamino)-1,3,5-triazin-2-yl]amino]benzenesulfonic acid]; Optical Brightener OBA 184; FWA 220; Stilbene-based brightener.
EINECS	Contact for details

Quality Control

Every batch of Fluorever Oba is manufactured and tested under a strict quality management system. Our quality control protocols ensure the product meets consistent specifications for purity, performance, and fluorescence yield. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, hue, and impurity profiles. Our production adheres to ISO 9001 standards, guaranteeing reliability for your industrial processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Yellowish powder or granules
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Moisture Content	≤ 2.0%
Ash Content	≤ 0.5%
Fluorescence Intensity	≥ 95% of reference standard
pH (1% Solution)	6.0 - 8.0
Solubility	Soluble in water and common polar organic solvents

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