Description

2,2'-[1,2-Ethenediylbis[(3-sulfo-4,1-phenylene)imino[6-[(3-amino-3-oxopropyl)[3-(diethylamino)propyl]amino]-1,3,5-triazine-4,2-diyl]]]bis[1,4-benzenedisulfonic acid]hexasodium salt is a high-purity, water-soluble fluorescent whitening agent (FWA) belonging to the triazinylaminostilbene disulfonate class. This compound is engineered to deliver exceptional optical brightening performance by absorbing ultraviolet light and re-emitting it as visible blue light, thereby enhancing the perceived whiteness and brightness of treated materials. It is a critical component for manufacturers in the textile, paper, detergent, and plastics industries seeking to achieve superior product aesthetics and quality.

Application

• Textile Finishing: Primary application for whitening and brightening cotton, nylon, and other synthetic fibers during manufacturing and laundering.
• Laundry Detergent Formulation: Key ingredient in premium liquid and powder detergents to impart a "whiter-than-white" appearance to fabrics.
• Paper Manufacturing: Used in the production of high-quality writing, printing, and specialty papers to achieve high brightness levels.
• Plastics and Polymers: Incorporated into polymers, synthetic fibers (like polyester), and coatings to counteract yellowing and improve visual appeal.
• Advanced Material Coatings: Potential use in optical brightener coatings for security papers and specialty films.

Basic Information

Item	Details
Product Name	2,2'-[1,2-Ethenediylbis[(3-sulfo-4,1-phenylene)imino[6-[(3-amino-3-oxopropyl)[3-(diethylamino)propyl]amino]-1,3,5-triazine-4,2-diyl]]]bis[1,4-benzenedisulfonic acid]hexasodium salt
CAS No.	53499-88-0
Molecular Formula	C58H66N14Na6O24S6
Molecular Weight	~1637.5 g/mol (Contact for exact details)
Synonyms	Fluorescent Brightener 220; Tinopal CBS-X; Hexasodium 2,2'-(1,2-ethenediyldi-4,1-phenylene)bis[6-[3-(diethylamino)propyl][3-(2,5-dioxopyrrolidin-1-yl)propyl]amino]-1,3,5-triazine-4,2-diyl]bis(5-sulfo-1,3-benzenedisulfonate); Optical Brightener OB-1; FWA 220; Stilbene triazine brightener; 4,4'-Bis[[6-[3-(diethylamino)propyl][3-(2,5-dioxopyrrolidin-1-yl)propyl]amino]-1,3,5-triazin-2-yl]amino]stilbene-2,2'-disulfonic acid hexasodium salt
EINECS	Contact for details

Quality Control

Our production of this fluorescent whitening agent adheres to strict quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC for purity and assay, spectrophotometry for strength and shade, and checks for solubility and ionic content. A Certificate of Analysis (COA) detailing batch-specific results is provided to ensure traceability and compliance with your specifications 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); keep the original container tightly sealed to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	Light yellow to yellowish-green powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 95.0%
Strength (Spectrophotometry)	100 ± 3% (vs. Standard)
Moisture Content (KF)	≤ 5.0%
Solubility (in Water)	Clear, yellow solution
pH (1% Aqueous Solution)	7.0 - 9.0
Ash Content	Contact for details

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