Description

C.I.Fluorescent Brightening Agent 28 Compd. With 2-Aminoethanol is a high-performance optical brightener belonging to the stilbene derivative class. This compound is engineered to absorb ultraviolet light and re-emit it as visible blue light, effectively whitening and brightening substrates. It is a critical additive for manufacturers in the textile, paper, and detergent industries seeking to enhance the visual appeal and perceived cleanliness of their products. The material is supplied as a light-sensitive compound requiring appropriate handling to maintain efficacy.

Application

• Textile Finishing: Primary application for whitening and brightening natural and synthetic fibers like cotton, polyester, and polyamide.
• Paper Manufacturing: Used in pulp and coating formulations to achieve high-brightness, blue-white paper grades for premium printing and writing papers.
• Detergent & Laundry Care: Incorporated into laundry detergents, fabric softeners, and soaps to impart a "whiter-than-white" appearance to laundered fabrics.
• Plastics and Polymers: Applied as a masterbatch additive to correct yellowness and improve the brightness of plastics, especially PVC and polyolefins.
• Cosmetics and Personal Care: Used in formulations like shampoos and conditioners to enhance the visual brightness of hair or product appearance.
• Industrial Coatings: Employed in specific coating systems where optical brightening effects are desired for aesthetic purposes.

Basic Information

Product Name	C.I.Fluorescent Brightening Agent 28 Compd. With 2-Aminoethanol
CAS No.	19472-73-2
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Fluorescent Brightener 28; FBA 28; Optical Brightener 28; 2,2'-(1,2-Ethenediyl)bis[5-[[4-[bis(2-hydroxyethyl)amino]-6-(phenylamino)-1,3,5-triazin-2-yl]amino]benzenesulfonic acid] compound with 2-aminoethanol; Tinopal UNPA-GX; Blankophor BSU; Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis[5-[[4-[bis(2-hydroxyethyl)amino]-6-(phenylamino)-1,3,5-triazin-2-yl]amino]-, compound with 2-aminoethanol (1:?); C.I. 40622
EINECS	Contact for details

Quality Control

Our production of C.I.Fluorescent Brightening Agent 28 adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. Each lot is tested against key parameters including strength, hue, and solubility to meet precise customer specifications. A Certificate of Analysis (COA) documenting these results is available for every shipment upon request, providing full traceability and quality assurance for your manufacturing processes.

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 heat sources and incompatible materials. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to prevent degradation of the brightening effect.

Specification

Item	Specification
Appearance	Yellowish to off-white powder or granules
Identification (IR)	Conforms
Assay (HPLC)	Min. 95%
Strength (Relative)	100 ± 3%
Hue	Standard
Moisture Content	Max. 5.0%
Ash Content	Max. 0.5%
Solubility (in water)	Partially soluble; forms colloidal dispersion

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