Description

4,4'-Bis[(4-Anilino-6-Morpholino-1,3,5-Triazin-2-Yl)Amino]Stilbene-2,2'-Disulphonic Acid is a high-performance fluorescent whitening agent (FWA) belonging to the triazine-stilbene chemical class. This compound is engineered to deliver exceptional optical brightness and light stability, making it a critical additive for enhancing the visual appeal and perceived quality of materials. It is primarily utilized by manufacturers in the plastics, synthetic fibers, paper, and detergent industries seeking superior whiteness and brightness in their finished products.

Application

• Plastics and Polymers: As a highly effective optical brightener for engineering plastics, PVC, polyolefins, and synthetic fibers to counteract yellowing and improve whiteness.
• Detergent and Laundry Care: A key fluorescent whitening agent in premium laundry detergents and fabric softeners to impart a "whiter-than-white" appearance to textiles.
• Paper Manufacturing: Used in high-quality paper production, including coated paper and board, to achieve brilliant brightness and opacity.
• Textile and Fiber Treatment: Applied in the finishing of synthetic fibers like polyester and nylon to enhance their brightness and color vibrancy.
• Coatings and Inks: Incorporated into specialty coatings, paints, and printing inks where optical brightness and color correction are required.
• Advanced Material Synthesis: Serves as a functional intermediate or monomer in the synthesis of specialized polymers and light-emitting materials.

Basic Information

Product Name	4,4'-Bis[(4-Anilino-6-Morpholino-1,3,5-Triazin-2-Yl)Amino]Stilbene-2,2'-Disulphonic Acid
CAS No.	24231-46-7
Molecular Formula	C46H44N12O8S2
Molecular Weight	957.06 g/mol
Synonyms	Fluorescent Brightener 220; FWA 220; Tinopal CBS-X; 4,4'-Bis[(4-anilino-6-morpholino-s-triazin-2-yl)amino]stilbene-2,2'-disulfonic acid; Stilbene triazine derivative; Optical Brightener OB-1 (industry variant); 2,2'-(1,2-Ethenediyl)bis[5-[[4-(phenylamino)-6-(morpholin-4-yl)-1,3,5-triazin-2-yl]amino]benzenesulfonic acid]; 4,4'-Bis(4-anilino-6-morpholino-1,3,5-triazin-2-ylamino)stilbene-2,2'-disulfonic acid
EINECS	Contact for details

Quality Control

Our production of 4,4'-Bis[(4-Anilino-6-Morpholino-1,3,5-Triazin-2-Yl)Amino]Stilbene-2,2'-Disulphonic Acid adheres to a stringent quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and assay, spectrophotometry for whitening efficacy, and checks for residual solvents and heavy metals to ensure compliance with industry and customer-specific standards. A comprehensive Certificate of Analysis (COA) documenting all test results is provided with each shipment.

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). Keep away from incompatible materials such as strong acids and organic solvents. The product is light-sensitive and should be stored away from direct light exposure to maintain stability.

Specification

Item	Specification
Appearance	Light yellow to yellow powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Whitening Effect (Fluorescence)	Conforms to standard
Loss on Drying	≤ 1.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in water)	Slightly soluble, forms colloidal dispersion

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