Description

Fluorescent Brightener 210 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 ability to absorb ultraviolet light and re-emit it as visible blue light, effectively counteracting yellowing and creating a brilliant, clean visual appearance. This product is essential for manufacturers in the textile, paper, detergent, and plastics industries seeking to improve the aesthetic quality and perceived value of their finished goods.

Application

• Textile Finishing: Widely used for whitening and brightening synthetic fibers like polyester, nylon, and their blends, as well as in textile coatings and prints.
• Laundry Detergents & Fabric Softeners: A key additive in household and industrial detergents to impart a "whiter-than-white" look to laundered fabrics.
• Paper Manufacturing: Applied in the coating or pulp to achieve high brightness levels in fine papers, art papers, and packaging materials.
• Plastics and Polymers: Incorporated into polymers such as PVC, polyolefins, and styrenics to correct inherent yellowness and improve the brightness of molded articles, films, and fibers.
• Soaps and Personal Care: Used in certain soap formulations and cosmetic applications where a brightening effect is desired.
• Synthetic Leather and Coatings: Enhances the whiteness and visual appeal of synthetic leather products and various industrial coatings.

Basic Information

Product Name	Fluorescent Brightener 210
CAS No.	28950-61-0
Molecular Formula	C₄₀H₄₂N₁₂O₆S₂
Molecular Weight	843.0 g/mol
Synonyms	Fluorescent Brightener ER-I; Tinopal ER-I; Blankophor ER; 4,4'-Bis[(4-anilino-6-morpholino-1,3,5-triazin-2-yl)amino]stilbene-2,2'-disulfonic acid disodium salt; CBS 210; FBA 210; Optical Brightener 210; 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
EINECS	249-321-6

Quality Control

Our Fluorescent Brightener 210 is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure consistent performance in brightness, hue, and solubility. Key parameters such as purity, strength, and ash content are verified. A Certificate of Analysis (COA) detailing the specific test results is provided with each shipment to guarantee compliance with your technical requirements.

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 will maintain its specified properties.

Specification

Item	Specification
Appearance	Yellowish-green powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Strength (UV-Vis)	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Ash Content	≤ 0.5%
Solubility in Water	Clear, yellow-green solution
pH (1% Solution)	7.0 - 9.0

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