Description

Blankophor G is a high-performance fluorescent whitening agent (FWA) belonging to the stilbene derivative class, widely recognized for its superior optical brightening properties. Its primary value lies in its ability to absorb ultraviolet light and re-emit it as visible blue light, effectively compensating for yellowish tints and enhancing the perceived whiteness and brightness of materials. This makes it an essential component for manufacturers in the textile, paper, detergent, and plastics industries seeking to achieve premium visual quality in their finished products.

Application

• Textile Finishing: Applied to cotton, viscose, and polyamide fibers to achieve high degrees of whiteness in fabrics and garments.
• Paper Manufacturing: Used in coating formulations and pulp to produce high-brightness writing, printing, and specialty papers.
• Detergent & Laundry Care: Incorporated into laundry detergents, fabric softeners, and soaps to impart a "whiter-than-white" appearance to laundered textiles.
• Plastics and Synthetic Fibers: Added during the polymerization or compounding process to brighten plastics like PVC, polyolefins, and polyester fibers.
• Cosmetics and Personal Care: Used in specific formulations, such as shampoos or soaps, to enhance product aesthetics.
• Advanced Material Coatings: Employed in coatings for specialty papers and certain high-performance materials requiring optical enhancement.

Basic Information

Item	Detail
Product Name	Blankophor G
CAS No.	7426-67-7
Molecular Formula	C40H38N12Na2O8S2
Molecular Weight	924.90 g/mol
Synonyms	Tinopal CBS-X; Fluorescent Brightener 351; 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; 4,4'-Bis[[4-[bis(2-hydroxyethyl)amino]-6-anilino-1,3,5-triazin-2-yl]amino]stilbene-2,2'-disulfonic acid disodium salt; FWA 351; Optical Brightener CBS-X; Blankophor P167; Leucophor PAM
EINECS	Contact for details

Quality Control

Our Blankophor G is manufactured under a stringent quality management system. Every batch undergoes rigorous testing to ensure consistent performance, including assay (HPLC), shade determination, solubility tests, and impurity profiling. Certificates of Analysis (COA) documenting purity, strength, and physical characteristics are provided with each shipment to guarantee compliance with your specific application requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent moisture absorption, which can affect product performance.

Specification

Item	Specification
Appearance	Yellowish-green powder or granules
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Moisture Content	≤ 5.0%
Ash Content (Sulfated)	≤ 0.5%
Shade (on cotton)	Conforms to standard sample
Solubility in Water	Clear solution at 1%
pH (1% Solution)	7.0 - 9.0

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