Description

Disodium 4,4'-Bis[[4-Anilino-6-[(2-Carbamoylethyl)(2-Hydroxyethyl)Amino]-1,3,5,-Triazin-2-Yl]Amino]Stilbene-2,2'-Disulphonate is a high-performance fluorescent whitening agent (FWA) belonging to the triazinylaminostilbene disulfonate class. Its primary value lies in its exceptional ability to absorb UV light and re-emit it as visible blue light, thereby compensating for yellowing 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. The CAS number for this compound is 27344-06-5.

Application

This fluorescent whitening agent is engineered for high-affinity applications where brilliant whiteness and light fastness are critical. Its key applications include:

• Textile Finishing: Primary use for whitening and brightening cotton, nylon, wool, and synthetic fibers during scouring, bleaching, or finishing processes.
• Laundry Detergents & Fabric Softeners: A key additive in household and industrial detergents to impart a "whiter-than-white" appearance to laundered fabrics.
• Paper Manufacturing: Applied in the coating or pulp slurry to enhance the brightness and optical quality of high-grade printing, writing, and tissue papers.
• Plastics and Polymers: Incorporated into polymers like PVC, polyethylene, and polyamide to correct inherent yellowness and improve aesthetic appeal.
• Soaps and Personal Care: Used in certain cosmetic formulations and soaps to improve visual purity and brightness.
• Advanced Coatings: Formulated into paints, varnishes, and other coatings where optical brightening is required.

Basic Information

Item	Details
Product Name	Disodium 4,4'-Bis[[4-Anilino-6-[(2-Carbamoylethyl)(2-Hydroxyethyl)Amino]-1,3,5,-Triazin-2-Yl]Amino]Stilbene-2,2'-Disulphonate
CAS No.	27344-06-5
Molecular Formula	C46H48N14Na2O10S2
Molecular Weight	1075.1 g/mol
Synonyms	Fluorescent Brightener 220; Tinopal CBS-X; 4,4'-Bis[[4-anilino-6-[N-(2-cyanoethyl)-N-(2-hydroxyethyl)amino]-1,3,5-triazin-2-yl]amino]stilbene-2,2'-disulfonic acid disodium salt; Disodium 4,4'-bis(4-anilino-6-morpholino-1,3,5-triazin-2-yl)amino stilbene-2,2'-disulfonate (related compound); FWA 220; CBS-X; Optical Brightener 220; 2,2'-(1,2-Ethenediyl)bis[5-[[4-[[2-(2-cyanoethoxy)ethyl]amino]-6-(phenylamino)-1,3,5-triazin-2-yl]amino]benzenesulfonic acid] disodium salt
EINECS	Contact for details

Quality Control

Our Disodium 4,4'-Bis[[4-Anilino-6-[(2-Carbamoylethyl)(2-Hydroxyethyl)Amino]-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 performance, including purity, shade, and solubility. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical properties is provided to guarantee it meets your specific application requirements and industry standards.

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). This product is hygroscopic (moisture-sensitive); therefore, the container must be kept tightly sealed after use to prevent absorption of atmospheric moisture, which can affect performance.

Specification

Item	Specification
Appearance	Yellowish-green powder or granules
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 97.0%
Moisture Content	≤ 5.0%
pH (1% Solution)	7.0 - 9.0
Ash Content (Sulfated)	≤ 0.5%
Whiteness Degree (on cotton)	Standard sample comparison
Solubility in Water	Clear, yellowish solution

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