Description

Fluorescent Brightening Agent 169 is a high-performance stilbene derivative optical brightener widely used to enhance the whiteness and brightness of various substrates. Its core value lies in its ability to absorb ultraviolet light and re-emit it as visible blue light, effectively counteracting yellowing and improving the perceived color quality of finished products. This agent is essential for manufacturers in the textile, paper, detergent, and plastics industries seeking to achieve superior visual appeal and market competitiveness for their goods.

Application

• Primary brightening agent for synthetic fibers like polyester, nylon, and acetate.
• Key component in laundry detergents and fabric softeners for in-wash whitening.
• Enhancement of brightness and opacity in paper and paperboard production.
• Improving the whiteness of plastics and polymers, including PVC and polyolefins.
• Used in the formulation of coatings and paints for a brighter finish.
• Application in the production of high-visibility security papers.

Basic Information

Product Name	Fluorescent Brightening Agent 169
CAS No.	12224-32-7
Molecular Formula	C₄₀H₄₂N₁₂O₆S₂
Molecular Weight	843.0 g/mol
Synonyms	FBA 169; Optical Brightener 169; 4,4'-Bis[(4-anilino-6-morpholino-1,3,5-triazin-2-yl)amino]stilbene-2,2'-disulfonic acid; Tinopal UNPA-GX; Blankophor ER; Fluorescent Whitening Agent 169; 2,2'-(1,2-Ethenediyl)bis[5-[[4-[(4-morpholinyl)-6-(phenylamino)-1,3,5-triazin-2-yl]amino]benzenesulfonic acid]
EINECS	Contact for details

Quality Control

Our Fluorescent Brightening Agent 169 is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure consistent purity, performance, and compliance with industry specifications. A detailed Certificate of Analysis (COA) documenting key parameters such as assay, hue, and strength is provided with each shipment to guarantee product integrity and support your quality assurance protocols.

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. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Yellowish-green powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Moisture Content	≤ 2.0%
Ash Content	≤ 0.5%
pH (1% Solution)	6.0 - 8.0
Whiteness Degree	Standard sample ± 3%

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