Description

Fluorescent Brightener Ks-N is a high-performance stilbene-based optical brightening agent (OBA) designed to enhance the whiteness and brightness of various substrates. Its core value lies in its ability to absorb ultraviolet light and re-emit it as visible blue light, effectively counteracting yellowing and improving the perceived color and quality of finished products. This agent is essential for manufacturers in the detergent, paper, textile, and plastics industries seeking to achieve superior visual appeal and market competitiveness for their goods.

Application

• Detergent & Laundry Care: Primary application for enhancing the whiteness of fabrics in laundry detergents, powders, and liquids.
• Paper Manufacturing: Used in coating formulations and pulp to increase the brightness and opacity of high-quality writing, printing, and packaging papers.
• Textile & Fiber Treatment: Applied in the finishing process of synthetic fibers (like polyester and nylon) and cotton to impart a brilliant white appearance.
• Plastics & Polymers: Incorporated into polymers such as PVC, polyolefins, and styrenics to improve the brightness of molded articles, films, and fibers.
• Soaps & Personal Care: Utilized in bar soaps, body washes, and cosmetic formulations to boost visual cleanliness and appeal.
• Coatings & Paints: Added to specific coating systems to achieve optical brightening effects on surfaces.

Basic Information

Product Name	Fluorescent Brightener Ks-N
CAS No.	5242-49-9
Molecular Formula	C40H38N12Na2O8S2
Molecular Weight	924.91 g/mol
Synonyms	Tinopal CBS-X; Fluorescent Brightener CBS-X; 2,2'-(1,2-Ethenediyl)bis[5-[[4-[bis(2-hydroxyethyl)amino]-6-morpholino-1,3,5-triazin-2-yl]amino]benzenesulfonic acid] disodium salt; 4,4'-Bis[[4-[bis(2-hydroxyethyl)amino]-6-morpholino-1,3,5-triazin-2-yl]amino]stilbene-2,2'-disulfonic acid disodium salt; Optical Brightener KSN; FBA Ks-N; Blankophor CBS-X
EINECS	226-029-3

Quality Control

Our Fluorescent Brightener Ks-N is manufactured under a stringent quality management system. Every batch undergoes rigorous analytical testing to ensure consistent performance, including HPLC assay for purity, spectrophotometric analysis for strength, and checks for solubility and hue. Certificates of Analysis (COA) detailing all relevant specifications are available upon request to support your quality assurance protocols.

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); ensure the container is kept tightly sealed 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)	≥ 98.0%
Strength (Spectrophotometry)	100 ± 3% of standard
Moisture Content	≤ 5.0%
Solubility in Water	Clear, yellow-green solution
pH (1% Solution)	7.0 - 9.0
Ash Content	≤ 0.5%

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