4404-43-7

Basic information

• Product Name: FLUORESCENT BRIGHTENER 28
• Synonyms: Fluorescent Brightener 28,free acid;4,4'-bis[4-[bis(2-hydroxyethyl)amino]-6-anilino-1,3,5-triazin-2-yl]amino]stilbene-2,2'-disulphonic acid;4,4'-Bis((4-(bis(2-hydroxyethyl)amino)-6-anilino-1,3,5-triazin-2-yl)amino)stilbe;2,2-(2,5-Thiophenediyl) Bis[5-(1,1-Dimethylethy)] Benzoxazole;Benzenesulfonic acid, 2,2-(1,2-ethenediyl)bis5-4-bis(2-hydroxyethyl)amino-6-(phenylamino)-1,3,5-triazin-2-ylamino-;FLUORESCENT BRIGHTNER 28;FLUORESCENTBRIGHT.AGENT28;Optical Brightener CBS-X (liquid)
• CAS NO: 4404-43-7
• Molecular Formula: C₄₀H₄₄N₁₂O₁₀S₂
• Molecular Weight: 916.98
• EINECS: 224-073-5
• Product Categories: INORGANIC & ORGANIC CHEMICALS;Dye stuff;Organics
• Mol File: 4404-43-7.mol
• Article Data: 1

Chemical Properties

• Melting Point: 290°C
• Boiling Point: 1311℃[at 101 325 Pa]
• Appearance: /
• Density: 1.598 g/cm³
• Vapor Pressure: 0Pa at 25℃
• Refractive Index: 1.744
• Storage Temp.: Store at RT.
• PKA: -1.28±0.50(Predicted)
• Water Solubility: 80g/L at 25℃
• CAS DataBase Reference: FLUORESCENT BRIGHTENER 28(CAS DataBase Reference)
• NIST Chemistry Reference: FLUORESCENT BRIGHTENER 28(4404-43-7)
• EPA Substance Registry System: FLUORESCENT BRIGHTENER 28(4404-43-7)

Safety Data

• Hazard Codes: Xi
• Statements: 36
• Safety Statements: 26
• WGK Germany: 3
• Hazardous Substances Data: 4404-43-7(Hazardous Substances Data)

Usage

Description

Fluorescent Brightener 28, also known as an organosulfonic acid, is a stilbene derivative with specific functional groups that exhibit unique properties. It is characterized by the presence of 4-anilino-6-[bis(2-hydroxyethyl)amino]-1,3,5-triazin-2-ylamino groups at the 4 and 4'-positions and sulfo groups at the 2and 2'-positions. This chemical structure endows it with the ability to enhance the appearance of certain materials by absorbing ultraviolet light and re-emitting it as visible light, making it a valuable additive in various industries.

Uses

Used in Biotechnology Industry:
Fluorescent Brightener 28 is used as a staining agent for the identification and visualization of fungi. Its fluorescence properties allow for the clear differentiation of fungal structures, which is crucial in research and diagnostic applications. Additionally, it serves as a viability stain, helping to distinguish between living and dead cells, which is essential in assessing the effectiveness of treatments and understanding cellular processes.
Used in Dyes and Metabolites Industry:
Fluorescent Brightener 28 is utilized as an additive in the production of dyes and metabolites, where its ability to enhance the brightness and whiteness of materials is highly valued. By absorbing ultraviolet light and re-emitting it as visible light, it improves the overall appearance of fabrics, plastics, and other materials, making them more visually appealing and vibrant. This property is particularly useful in the textile, paper, and cosmetics industries, where color and brightness are critical factors in product quality and consumer appeal.

InChI:InChI=1/C40H44N12O10S2/c53-21-17-51(18-22-54)39-47-35(41-29-7-3-1-4-8-29)45-37(49-39)43-31-15-13-27(33(25-31)63(57,58)59)11-12-28-14-16-32(26-34(28)64(60,61)62)44-38-46-36(42-30-9-5-2-6-10-30)48-40(50-38)52(19-23-55)20-24-56/h1-16,25-26,53-56H,17-24H2,(H,57,58,59)(H,60,61,62)(H2,41,43,45,47,49)(H2,42,44,46,48,50)/b12-11+

Upstream product

• 102-71-6 triethanolamine 

Relevant articles and documents

Optical brighteners compositions their production and their use

The invention relates to an optical brightener mixture (W) comprising optical brighteners (A) of formula (Ia), and (B) of formula (Ib) and optionally (C) of formula (Ic) as defined herein, their concentrated aqueous solutions (S), their production and their use.