Description

Disodium 4,4'-Bis[(4-Morpholino-6-o-Toluidino-1,3,5-Triazin-2-Yl)Amino]Stilbene-2,2'-Disulphonate is a high-performance fluorescent whitening agent (FWA) belonging to the triazinylaminostilbene class. It matters for its exceptional ability to absorb ultraviolet light and re-emit it as visible blue light, thereby compensating for yellowish tints and significantly enhancing the perceived whiteness and brightness of materials. This product is essential for manufacturers in the textile, paper, detergent, and plastics industries seeking to achieve superior optical brightening effects in their finished products.

Application

• Textile Finishing: Primary application for whitening and brightening cotton, nylon, wool, and synthetic fibers during scouring, bleaching, or finishing processes.
• Paper Manufacturing: Used in coating formulations and pulp to produce high-brightness printing, writing, and specialty papers.
• Detergent & Soap Industry: Incorporated into laundry detergents, fabric softeners, and soaps to impart a "whiter-than-white" appearance to laundered fabrics.
• Plastics and Polymers: Effective brightener for thermoplastics like PVC, polyethylene, and polystyrene to improve visual appeal.
• Synthetic Fiber Production: Applied in the spin finish or mass pigmentation of fibers such as polyester and polyamide.
• Advanced Coatings: Utilized in paints, varnishes, and other coating systems to enhance brightness and opacity.

Basic Information

Item	Details
Product Name	Disodium 4,4'-Bis[(4-Morpholino-6-o-Toluidino-1,3,5-Triazin-2-Yl)Amino]Stilbene-2,2'-Disulphonate
CAS No.	24019-80-5
Molecular Formula	C52H52N14Na2O10S2
Molecular Weight	1151.2 g/mol
Synonyms	Fluorescent Brightener 220 (FB 220); Tinopal CBS-X; Disodium 4,4'-bis(2-sulfostyryl)biphenyl derivative; Stilbene triazine fluorescent whitening agent; 2,2'-(1,2-Ethenediyl)bis[5-[[4-(4-morpholinyl)-6-(2-methylphenyl)amino]-1,3,5-triazin-2-yl]amino]benzenesulfonic acid disodium salt; 4,4'-Bis[(4-morpholino-6-(o-tolyl)amino-1,3,5-triazin-2-yl)amino]stilbene-2,2'-disulfonic acid disodium salt; Optical Brightener OB-1 (industry alias).
EINECS	Contact for details

Quality Control

Our Disodium 4,4'-Bis[(4-Morpholino-6-o-Toluidino-1,3,5-Triazin-2-Yl)Amino]Stilbene-2,2'-Disulphonate is manufactured under a strict quality management system. Every batch undergoes rigorous testing to ensure consistent purity, chromaticity, and whitening efficacy. Key parameters such as active content, ash content, and solubility are verified. Certificates of Analysis (COA) documenting these results are available upon request to support your quality assurance and regulatory compliance needs.

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. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain product stability and performance.

Specification

Item	Specification
Appearance	Yellowish-green powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Ash Content (Sulfated)	≤ 0.5%
pH (1% Solution)	7.0 - 9.0
Whiteness Value (on cotton)	≥ 150 (ISO Brightness)
Solubility in Water	Clear, yellowish solution

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