Description

Fluorescent Brightener 113 CAS NO 12768-92-2 is a high-performance stilbene derivative belonging to the class of optical brightening agents (OBAs). Its primary function is to absorb ultraviolet light and re-emit it as visible blue light, effectively enhancing the perceived whiteness and brightness of treated materials. This product is essential for manufacturers in the textile, paper, detergent, and plastics industries seeking to achieve superior visual quality and market appeal for their finished goods.

Application

• Primary use as a brightening agent for synthetic fibers like polyester, nylon, and acetate during the manufacturing or finishing processes.
• Key additive in household and industrial laundry detergents and fabric softeners to impart a "whiter-than-white" appearance to laundered textiles.
• Processing aid in the paper and pulp industry to increase the brightness of high-quality writing, printing, and packaging papers.
• Functional component in plastics and polymer masterbatches to correct yellowness and improve the aesthetic quality of molded articles and films.
• Used in coatings and inks formulations to enhance optical properties and visual impact.
• Applicable in advanced material research for its fluorescent properties in analytical and sensor applications.

Basic Information

Product Name	Fluorescent Brightener 113
CAS No.	12768-92-2
Molecular Formula	C₄₀H₄₂N₁₂O₆S₂
Molecular Weight	843.0 g/mol
Synonyms	Fluorescent Brightener 113; Tinopal CBS-X; 4,4'-Bis[(4-anilino-6-morpholino-1,3,5-triazin-2-yl)amino]stilbene-2,2'-disulfonic acid disodium salt; 2,2'-(1,2-Ethenediyl)bis[5-[[4-[bis(2-hydroxyethyl)amino]-6-(phenylamino)-1,3,5-triazin-2-yl]amino]benzenesulfonic acid] disodium salt; Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis[5-[[4-[bis(2-hydroxyethyl)amino]-6-(phenylamino)-1,3,5-triazin-2-yl]amino]-, disodium salt; Optical Brightener 113; OBA 113; FBA 113
EINECS	Contact for details

Quality Control

Our Fluorescent Brightener 113 is manufactured under a stringent quality management system. Every batch undergoes rigorous analytical testing to ensure consistent performance, including assessment of purity, strength, hue, and solubility. Certificates of Analysis (COA) detailing key 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). Keep away from incompatible materials and sources of heat. Due to its light-sensitive nature, minimize exposure during handling and transfer.

Specification

Item	Specification
Appearance	Yellowish-green powder or granules
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Strength (Colorimetric)	100 ± 5% of standard
Hue	Matches reference standard
Moisture Content	≤ 5.0%
Ash Content	≤ 0.5%
Solubility (in water)	Clear, faint yellow solution

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