Description

Fluorescent Brightener 119 is a high-performance stilbene-based optical brightening agent (OBA) designed to enhance the whiteness and brightness of various substrates. Its primary value lies in its ability to absorb ultraviolet light and re-emit it as visible blue light, effectively counteracting yellowing and creating a cleaner, more vibrant appearance. This product is essential for manufacturers in the textile, paper, and detergent industries seeking to improve the aesthetic quality and perceived value of their finished goods.

Application

• Textile Finishing: Widely used for whitening and brightening polyester, nylon, acetate fibers, and their blends during the finishing process.
• Paper Manufacturing: Applied as a pulp additive or surface coating agent to achieve high brightness grades in fine papers, tissue, and board.
• Detergent & Soap Formulation: Incorporated into laundry detergents, fabric softeners, and soaps to impart a "whiter-than-white" effect on fabrics during washing.
• Plastics and Polymers: Used as a masterbatch additive to correct yellowness and improve the brightness of engineering plastics, PVC, and synthetic fibers.
• Cosmetics and Personal Care: Employed in formulations for shampoos, conditioners, and skin creams to enhance product clarity and visual appeal.

Basic Information

Product Name	Fluorescent Brightener 119
CAS No.	12270-52-9
Molecular Formula	C₄₀H₄₂N₁₂O₈S₂
Molecular Weight	907.0 g/mol
Synonyms	Fluorescent Brightener ER; Tinopal UNPA-GX; Blankophor ER; 4,4'-Bis[(4-anilino-6-morpholino-1,3,5-triazin-2-yl)amino]stilbene-2,2'-disulfonic acid; 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 119; FBA 119; CI Fluorescent Brightener 119
EINECS	235-543-6

Quality Control

Every batch of Fluorescent Brightener 119 is manufactured under a strict quality management system. We perform comprehensive in-process and final release testing, including HPLC for assay and purity, spectrophotometry for strength and shade, and checks for solubility and particle size. A Certificate of Analysis (COA) detailing all specifications is provided with each shipment to ensure traceability and compliance with your quality requirements.

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). Keep away from heat sources and incompatible materials. Under these conditions, the product remains stable for extended periods.

Specification

Item	Specification
Appearance	Yellowish-green powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Strength (Spectrophotometry)	100 ± 3%
Moisture Content	≤ 5.0%
Ash Content	≤ 0.5%
Solubility (in water)	Clear, faint yellow solution
Particle Size (through 80 mesh)	≥ 95%

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