Description

C.I. Fluorescent Brightener 162 is a high-performance stilbene-based optical brightening agent (OBA) designed to enhance the whiteness and brightness of various substrates. This compound matters because it effectively absorbs ultraviolet light and re-emits it as visible blue light, counteracting yellowing and delivering a superior, visually appealing white appearance. Industries requiring premium optical performance, such as paper manufacturing, detergent formulation, and textile finishing, rely on this brightener to achieve exceptional product quality and market competitiveness.

Application

This versatile fluorescent brightener is engineered for a wide range of industrial applications where optical enhancement is critical:

• Paper and Pulp Industry: Key for high-grade printing, writing, and specialty papers to achieve brilliant whiteness.
• Detergent and Soap Manufacturing: Incorporated into laundry detergents and fabric softeners to impart a "whiter-than-white" look to textiles.
• Textile and Fiber Processing: Used in the finishing of cotton, nylon, and other synthetic fibers to improve brightness.
• Plastics and Polymer Masterbatches: Applied to correct inherent yellowness in polymers like PVC, polyolefins, and styrenics.
• Cosmetics and Personal Care: Employed in formulations where a bright, clean visual effect is desired for products.
• Advanced Coatings and Inks: Enhances the visual appeal of premium paints, varnishes, and printing inks.

Basic Information

Product Name	C.I. Fluorescent Brightener 162
CAS No.	3271-26-9
Molecular Formula	C₄₀H₄₂N₁₂O₆S₂
Molecular Weight	843.0 g/mol
Synonyms	Fluorescent Brightener 162; Tinopal® CBS-X; Blankophor® ER; 4,4'-Bis[(4-anilino-6-morpholino-1,3,5-triazin-2-yl)amino]stilbene-2,2'-disulfonic acid; Stilbene Brightener 162; 2,2'-(1,2-Ethenediyl)bis[5-[[4-[bis(2-hydroxyethyl)amino]-6-(4-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]benzenesulfonic acid; FBA 162; Optical Brightener OB-1
EINECS	221-909-9

Quality Control

Our production of C.I. Fluorescent Brightener 162 adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. Every lot undergoes comprehensive analytical testing, including HPLC for purity, spectrophotometry for strength, and assessments of solubility and hue. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at ambient temperature (15-25°C). Keep away from heat sources and incompatible materials. The product is light-sensitive (store away from light), and prolonged exposure to direct light should be avoided to maintain optimal efficacy.

Specification

Item	Specification
Appearance	Yellowish-green powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Strength (Spectrophotometry)	100 ± 3%
Water Content	≤ 5.0%
Ash Content	≤ 0.5%
Solubility (in water)	Partially soluble; forms colloidal dispersion
pH (1% dispersion)	7.0 - 9.0

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