Description

Fluorescent Brightening Agent 354 is a high-performance optical brightener belonging to the stilbene derivative class. It is engineered to absorb ultraviolet light and re-emit it as visible blue light, effectively compensating for yellowing and enhancing the perceived whiteness and brightness of treated materials. This agent is essential for manufacturers in the textile, paper, and polymer industries seeking to achieve superior visual quality and market appeal for their finished products. Its consistent performance makes it a reliable choice for demanding industrial applications where color fidelity is critical.

Application

• Textile Finishing: Primary application for whitening and brightening synthetic fibers like polyester, nylon, and their blends, as well as cotton and wool in specific formulations.
• Paper Manufacturing: Used in coating formulations and pulp to produce high-brightness printing papers, writing papers, and specialty paper products.
• Polymer and Plastics: Incorporated into thermoplastics such as PVC, polyethylene, and polystyrene to improve the initial whiteness and counteract yellowing during processing or aging.
• Detergent and Soap Industry: A key additive in laundry detergents and fabric softeners to impart a "whiter-than-white" appearance to laundered fabrics.
• Synthetic Fiber Production: Applied during the spinning process of man-made fibers to achieve intrinsic brightness from the polymer stage.
• Coating and Ink Formulations: Enhances the brightness and opacity of paints, varnishes, and inks, particularly in white and light-colored systems.

Basic Information

Item	Detail
Product Name	Fluorescent Brightening Agent 354
CAS No.	80940-98-3
Molecular Formula	C₄₀H₄₂N₁₂O₆S₂
Molecular Weight	843.0 g/mol
Synonyms	FBA 354; Optical Brightener 354; 2,2'-(1,2-Ethenediyl)bis[5-[4-[bis(2-hydroxyethyl)amino]-6-(phenylamino)-1,3,5-triazin-2-yl]amino]benzenesulfonic acid disodium salt; Tinopal CBS-X; Blankophor BSU; Fluorescent Whitening Agent 354; 4,4'-Bis[(4-anilino-6-bis(2-hydroxyethyl)amino-1,3,5-triazin-2-yl)amino]stilbene-2,2'-disulfonic acid disodium salt
EINECS	Contact for details

Quality Control

Our Fluorescent Brightening Agent 354 is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise specifications for strength, hue, and solubility. We provide Certificates of Analysis (COA) with key parameters including assay purity, absorbance characteristics, and ash content. Our quality commitment ensures batch-to-batch consistency and performance reliability for your production processes.

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). Keep away from heat sources and incompatible materials. Under these conditions, the product has excellent shelf stability.

Specification

Item	Specification
Appearance	Yellowish-green powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Absorbance (in solution)	Conforms to standard
Moisture Content	≤ 5.0%
Ash Content	≤ 0.5%
Solubility (in water)	Clear, faint yellow solution

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