Fluorescent Brightener 28

Fluorescent brightener 28 is a fluorescent whitening agent commonly used in the padding process of the textile industry. Fluorescent brightener 28 is capable of staining polysaccharides such as cellulose, and when the plasma membrane ruptures, it also weakly stains the cytoplasm and strongly stains the cell nucleus. Additionally, Fluorescent brightener 28 can be utilized to detect intracellular chitin in living cells. Fluorescent Brightener 28 also is a visible light emitting diode (LED) -light sensitive photoinitiator for free radical photopolymerizations[1][2][3].

Product Specifications

CAS Number

[4193-55-9]

Product Name Alternative

Calcofluor White M2R

UNSPSC

12171500

Hazard Statement

H319

Target

Fluorescent Dye

Type

Dye Reagents

Related Pathways

Others

Field of Research

Others

Assay Protocol

https://www.medchemexpress.com/fluorescent-brightener-28.html

Purity

93.20

Solubility

DMSO : 150 mg/mL (ultrasonic; warming; heat to 60°C) |H2O : 50 mg/mL (ultrasonic; warming; heat to 60°C)

Smiles

O=S(C1=CC(NC2=NC(NC3=CC=CC=C3)=NC(N(CCO)CCO)=N2)=CC=C1/C=C/C4=CC=C(NC5=NC(NC6=CC=CC=C6)=NC(N(CCO)CCO)=N5)C=C4S(=O)(O[Na])=O)(O[Na])=O

Molecular Formula

C40H42N12Na2O10S2

Molecular Weight

960.95

Precautions

H319

References & Citations

[1]Xiaoling Zuo, et al. Fluorescent Brighteners as Visible LED-Light Sensitive Photoinitiators for Free Radical Photopolymerizations. Macromol Rapid Commun. 2016 May;37 (10) :840-4.|[2]Levene R, et al. The Enhancement of Fluorescence During Pad-Batch Whitening of Cotton Cloth 1[J]. Textile Research Journal, 1981, 51 (9) : 559-563.|[3]Nakazato Y, et al. Live Detection of Intracellular Chitin in Butterfly Wing Epithelial Cells In Vivo Using Fluorescent Brightener 28: Implications for the Development of Scales and Color Patterns. Insects. 2023 Sep 8;14 (9) :753. |[4]Tegafaw T, et al. Fluorescent brightener 28-coated Fe3O4 nanoparticles: synthesis, characterization, and fluorescent properties. Journal of Nanoscience and Nanotechnology, 2016, 16 (10) : 10986-10990.