Description

Disodium 4,4'-Bis[(4-Chloro-6-Morpholino-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 a bright blue fluorescence, effectively compensating for yellowish tints and enhancing the perceived whiteness and brightness of materials. This compound is essential for manufacturers in the textile, paper, detergent, and plastics industries seeking to achieve superior optical brightening effects in their 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 & Laundry Care: A key ingredient in laundry detergents, fabric softeners, and soaps to impart a "whiter-than-white" appearance to laundered fabrics.
• Plastics and Polymers: Incorporated into polymers like PVC, polyolefins, and styrenics to improve the whiteness and visual appeal of finished plastic articles.
• Cosmetics and Personal Care: Employed in certain formulations, such as soaps and shampoos, to enhance product aesthetics.
• Advanced Material Coatings: Used in paints, inks, and coatings where optical brightening properties are desired.

Basic Information

Product Name	Disodium 4,4'-Bis[(4-Chloro-6-Morpholino-1,3,5-Triazin-2-Yl)Amino]Stilbene-2,2'-Disulphonate
CAS No.	28950-66-5
Molecular Formula	C34H30Cl2N12Na2O8S2
Molecular Weight	907.70 g/mol
Synonyms	Fluorescent Brightener 220 (FB 220); Tinopal CBS-X; Disodium 4,4'-bis(2-morpholino-4-anilino-s-triazin-6-ylamino)stilbene-2,2'-disulfonate; 4,4'-Bis[(4-anilino-6-morpholino-1,3,5-triazin-2-yl)amino]stilbene-2,2'-disulfonic acid disodium salt; Stilbene triazine fluorescent whitening agent; Optical Brightener 220 (OB 220); FWA 220; CBS-X
EINECS	249-321-2

Quality Control

Our production of Disodium 4,4'-Bis[(4-Chloro-6-Morpholino-1,3,5-Triazin-2-Yl)Amino]Stilbene-2,2'-Disulphonate adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity, spectrophotometry for strength and shade, and checks for moisture and residue content to ensure consistent performance and batch-to-batch reliability. Certificates of Analysis (COA) detailing all specifications are provided with each shipment.

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). Due to its hygroscopic nature, the container must be kept tightly sealed after initial use to prevent moisture absorption, which can affect product performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Yellowish to off-white powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Moisture (Karl Fischer)	≤ 5.0%
Ash Content	≤ 0.5%
Fluorescent Strength	100 ± 5% (vs. Standard)
Shade	Standard blue fluorescence
Solubility (in water)	Clear, yellow solution

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