Description

C.I. Fluorescent Brightener 217 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 creating a visually superior, cleaner appearance. Industries that require exceptional visual quality, such as paper manufacturing, detergent formulation, and textile finishing, rely on this brightener to meet stringent aesthetic standards.

Application

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

• Paper and Pulp Industry: Used in coating formulations and mass addition for high-quality writing, printing, and packaging papers to achieve superior brightness and whiteness.
• Detergent and Soap Manufacturing: Incorporated into laundry detergents, fabric softeners, and soaps to impart a "whiter-than-white" effect on textiles during washing.
• Textile and Fiber Treatment: Applied in the finishing of cotton, nylon, and other synthetic fibers to improve the brightness and vividness of white fabrics.
• Plastics and Polymer Processing: Acts as a whitening agent for engineering plastics, PVC, and synthetic fibers to offset inherent yellowness.
• Cosmetics and Personal Care: Utilized in formulations where a brightening or whitening visual effect is desired, following appropriate regulatory compliance.

Basic Information

Product Name	C.I. Fluorescent Brightener 217
CAS No.	72414-07-4
Molecular Formula	C₄₀H₄₂N₁₂O₆S₂
Molecular Weight	843.0 g/mol
Synonyms	Fluorescent Brightener 217; Tinopal UNPA-GX; Blankophor ER; 4,4'-Bis[(4-anilino-6-morpholino-1,3,5-triazin-2-yl)amino]stilbene-2,2'-disulfonic acid; Stilbene Brightener 217; Optical Brightener OBA 217; 2,2'-(1,2-Ethenediyl)bis[5-[[4-[(4-morpholinyl)-6-(phenylamino)-1,3,5-triazin-2-yl]amino]benzenesulfonic acid]; CI 40622
EINECS	Contact for details

Quality Control

Our C.I. Fluorescent Brightener 217 is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure consistent performance, including purity assay, shade evaluation, and solubility checks. Certificates of Analysis (COA) documenting key parameters 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 direct heat sources.

Specification

Item	Specification
Appearance	Yellowish-green powder or granules
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Brightening Strength	100 ± 3% (vs. Standard)
Shade	Neutral to bluish white
Moisture Content	≤ 5.0%
Ash Content	≤ 0.5%
Solubility (in water)	Soluble

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