Fluorescent brightener 28 (Technical Grade) [CAS 4404-43-7]

Fluorescent brightener 28 (Technical Grade) 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].

[4404-43-7]

C40H44N12O10S2

916.98

OCCN(CCO)C1=NC(NC2=CC=CC=C2)=NC(NC3=CC(S(=O)(O)=O)=C(C=C3)/C=C/C4=C(S(=O)(O)=O)C=C(NC5=NC(NC6=CC=CC=C6)=NC(N(CCO)CCO)=N5)C=C4)=N1

Fluorescent Dye

Room temperature

H319

P264-P280-P305+P351+P338