Description

N,N'-[(1,E)-1,2-Ethenediylbis[(3-Sulfo-4,1-Phenylene)Imino[6-[(4-Acetyl Phenyl)Amino]-1,3,5-Triazin-4,2-Diyl]]]Bis L-Aspartic Acid, Hexasodium Salt is a high-purity, water-soluble fluorescent whitening agent (FWA) belonging to the complex triazinyl stilbene derivative class. Its core value lies in its exceptional optical brightening efficiency and strong affinity for synthetic fibers, particularly polyamides and polyesters, under a wide range of processing conditions. This product is essential for manufacturers in the textile, paper, and detergent industries seeking to enhance the perceived whiteness and brightness of their finished products.

Application

• Textile Finishing: Primary application for whitening and brightening synthetic fibers like nylon, polyester, and polyamide blends during scouring, bleaching, or finishing baths.
• Detergent & Laundry Care: Formulation of high-performance laundry detergents, fabric softeners, and soaps to impart a "whiter-than-white" appearance to laundered fabrics.
• Paper Manufacturing: Used as an optical brightening agent (OBA) in the production of high-quality writing, printing, and specialty papers to improve brightness and opacity.
• Plastics & Polymers: Incorporation into certain polymers and masterbatches to compensate for yellowness and achieve a brighter, cleaner base color.
• Industrial Coatings: Potential use in specific coating formulations where optical brightening effects are required on synthetic substrates.

Basic Information

Item	Detail
Product Name	N,N'-[(1,E)-1,2-Ethenediylbis[(3-Sulfo-4,1-Phenylene)Imino[6-[(4-Acetyl Phenyl)Amino]-1,3,5-Triazin-4,2-Diyl]]]Bis L-Aspartic Acid, Hexasodium Salt
CAS No.	212501-14-9
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Fluorescent Brightener 260; Optical Brightener 260; FWA 260; OBA 260; Hexasodium 4,4'-bis[[4-[4-[2-[4-(acetylamino)phenyl]-4,6-bis(2-sulfophenylamino)-1,3,5-triazin-2-yl]amino]-3-sulfophenyl]ethenyl]benzene-1,3-disulfonate; Stilbene triazine derivative; 4,4'-Bis(2-sulfostyryl)biphenyl derivative; Tinopal CBS-X (related trade series)
EINECS	Contact for details

Quality Control

Our production of this fluorescent whitening agent adheres to strict quality management protocols to ensure batch-to-batch consistency in strength, hue, and solubility. Quality is verified through advanced analytical techniques including HPLC for purity and assay, spectrophotometry for color strength and shade, and tests for solubility and application performance. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and performance metrics is provided with every 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). This material is hygroscopic (moisture-sensitive); the original container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect performance. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Yellowish to off-white powder
Identification (IR)	Conforms to standard
Assay (HPLC)	Min. 95.0%
Color Strength	100 ± 5% (vs. Standard)
Shade	Bluish Violet Fluorescence
Moisture Content	Max. 5.0%
Solubility in Water	Clear solution at 1%
pH (1% 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.