Description

Hexasodium 2,2'-[Vinylenebis[(3-Sulphonato-4,1-Phenylene)Imino[6-[(2-Cyanoethyl)(Phenylmethyl)Amino]-1,3,5-Triazine-4,2-Diyl]Imino]]Bis(Benzene-1,4-Disulphonate) is a high-purity, multi-sulfonated anionic fluorescent whitening agent (FWA) or optical brightener. Its complex structure provides exceptional substantivity and brightness for synthetic fibers, particularly polyamide and polyester, under a wide range of application conditions. This product is essential for manufacturers in the textile, paper, and detergent industries seeking to achieve superior whiteness and color brilliance in their finished goods.

Application

• Textile Whitening: Primary application for whitening and brightening polyamide (nylon) and polyester fibers and fabrics during exhaust or continuous dyeing processes.
• Detergent Formulation: Key optical brightener component in high-performance laundry detergents and fabric softeners to impart a "whiter-than-white" appearance to laundered textiles.
• Paper Coating & Finishing: Used in the production of high-brightness papers, including fine writing papers and specialty packaging, to enhance visual appeal.
• Plastics & Polymers: Incorporated into synthetic polymers and masterbatches to correct yellowness and improve the perceived whiteness of plastic products.
• Industrial Coatings: Applied in specific coating formulations where optical brightening effects are required for aesthetic purposes.

Basic Information

Item	Detail
Product Name	Hexasodium 2,2'-[Vinylenebis[(3-Sulphonato-4,1-Phenylene)Imino[6-[(2-Cyanoethyl)(Phenylmethyl)Amino]-1,3,5-Triazine-4,2-Diyl]Imino]]Bis(Benzene-1,4-Disulphonate)
CAS No.	82799-31-3
Molecular Formula	C58H42N14Na6O18S6
Molecular Weight	~1549.3 g/mol
Synonyms	Fluorescent Brightener 260; Optical Brightener 260; FWA 260; OB 260; Hexasodium 4,4'-bis[[4-anilino-6-[N-(2-cyanoethyl)-N-benzylamino]-1,3,5-triazin-2-yl]amino]stilbene-2,2'-disulfonate; Stilbene-based optical brightener; Tinopal® CBS-X (or similar trade names); Blankophor® types
EINECS	Contact for details

Quality Control

Our production of Hexasodium 2,2'-[Vinylenebis[(3-Sulphonato-4,1-Phenylene)Imino[6-[(2-Cyanoethyl)(Phenylmethyl)Amino]-1,3,5-Triazine-4,2-Diyl]Imino]]Bis(Benzene-1,4-Disulphonate) adheres to stringent quality management systems. Every batch is tested to ensure consistent strength, hue, and application performance. Certificates of Analysis (COA) documenting purity, absorbance, and other critical parameters are provided to guarantee compliance with your technical specifications.

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); keep the original container tightly sealed to prevent absorption of atmospheric moisture, which can affect performance.

Specification

Item	Specification
Appearance	Yellowish to off-white powder or granules
Identification (IR)	Conforms to standard
Assay (HPLC)	Min. 95.0%
Moisture (KF)	Max. 5.0%
Ash Content	Contact for details
Absorbance (λ max)	Contact for details
pH (1% Solution)	7.0 - 9.0

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