Description

Fluorescent Brightener 264 is a high-performance stilbene-based optical brightening agent (OBA) designed to enhance the whiteness and brightness of various substrates. Its core value lies in its exceptional ability to absorb ultraviolet light and re-emit it as visible blue light, effectively counteracting yellowing and producing a brilliant, clean visual appearance. This product is essential for manufacturers in the detergent, paper, textile, and plastics industries seeking to improve the aesthetic appeal and perceived quality of their finished goods.

Application

• Laundry Detergents & Fabric Softeners: Primary application for whitening and brightening cotton, polyester, and blended fabrics, providing a superior visual clean.
• Paper & Pulp Industry: Used in coating formulations and pulp to achieve high brightness levels in printing papers, tissues, and board.
• Textile Finishing: Applied in the finishing bath for synthetic fibers like polyester and nylon to impart a permanent brightening effect.
• Plastics and Polymers: Incorporated into polymers such as PVC, polyolefins, and styrenics to mask inherent yellowness and enhance color vibrancy.
• Soaps and Personal Care: Added to bar soaps, liquid soaps, and cosmetic formulations to improve product whiteness.
• Coatings and Inks: Used in specific coating systems to increase opacity and brightness.

Basic Information

Product Name	Fluorescent Brightener 264
CAS No.	68971-49-3
Molecular Formula	C40H38N12O8S2Na2
Molecular Weight	924.96 g/mol
Synonyms	Tinopal CBS-X; Fluorescent Brightener CBS-X; 2,2'-(1,2-Ethenediyl)bis[5-[[4-[bis(2-hydroxyethyl)amino]-6-(4-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]benzenesulfonic acid disodium salt; Optical Brightener 264; FBA 264; Blankophor CBS-X; Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis[5-[[4-[bis(2-hydroxyethyl)amino]-6-[(4-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]-, disodium salt
EINECS	Contact for details

Quality Control

Our Fluorescent Brightener 264 is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for assay and purity, to ensure consistent performance and compliance with industry specifications. A Certificate of Analysis (COA) detailing key parameters such as strength, hue, and solubility is provided with each shipment to guarantee traceability and product integrity.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the original container tightly sealed when not in use to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	Yellowish-green powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Strength (Relative)	100 ± 3%
Hue	Standard
Moisture Content	≤ 5.0%
Solubility in Water	Clear solution
Ash Content	≤ 0.5%

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