Description

44Bisstriazin2Ylamino22Stilbenedisulphonicaciddisodiumsalt is a high-purity, synthetic organic compound belonging to the stilbene disulfonic acid derivative class. This chemical is valued for its strong fluorescent properties and its role as a key intermediate in the synthesis of optical brightening agents and fluorescent dyes. It is essential for manufacturers and R&D facilities in the textile, paper, detergent, and specialty chemical industries seeking to enhance product whiteness and brightness. The compound is supplied under strict quality control to ensure batch-to-batch consistency for demanding industrial applications.

Application

• Optical Brightener Intermediate: A critical precursor in the manufacturing of fluorescent whitening agents (FWAs) for textiles and papers.
• Fluorescent Dye Synthesis: Used in the production of dyes for biological staining, security inks, and high-visibility materials.
• Detergent Formulation: Incorporated into premium laundry detergent blends to impart a "whiter-than-white" visual effect on fabrics.
• Paper Coating Additive: Enhances the brightness and optical quality of high-grade printing and writing papers.
• Polymer Modification: Employed to introduce fluorescent characteristics into certain plastics and polymers.
• Analytical Reagent: Serves as a standard or reagent in fluorescence spectroscopy and related analytical methods.
• Research & Development: Used in academic and industrial labs for photochemical studies and the development of new luminescent materials.

Basic Information

Product Name	44Bisstriazin2Ylamino22Stilbenedisulphonicaciddisodiumsalt
CAS No.	17263-59-1
Molecular Formula	C26H20N6Na2O6S2
Molecular Weight	606.57 g/mol
Synonyms	4,4'-Bis[(4,6-dianilino-1,3,5-triazin-2-yl)amino]stilbene-2,2'-disulfonic acid disodium salt; Tinopal CBS-X; Fluorescent Brightener 351; Disodium 4,4'-bis[(4-anilino-6-morpholino-1,3,5-triazin-2-yl)amino]stilbene-2,2'-disulfonate; FBA 351; Stilbene triazine brightener; Optical brightener CBS; Blankophor CBS
EINECS	Contact for details

Quality Control

Our 44Bisstriazin2Ylamino22Stilbenedisulphonicaciddisodiumsalt is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications. A Certificate of Analysis (COA) detailing all test results is provided with each shipment. We adhere to relevant industry standards and can support compliance requirements for global markets.

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. The product is light-sensitive (store away from light), and prolonged exposure should be avoided to maintain stability.

Specification

Item	Specification
Appearance	Light yellow to yellow powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 95.0%
Water Content	≤ 5.0%
Sulfated Ash	≤ 0.5%
pH (1% Solution)	7.0 - 9.0
Fluorescence Intensity	≥ 95% of reference standard

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