Some experiments on the nitro derivatives of fluorescein was written by Bogert, Marston Taylor;Wright, Ralph Garrigue. And the article was included in Journal of the American Chemical Society in 1905.Application of 78512-32-0 This article mentions the following:
A study of the nitro and amino derivatives of fluorescein was conducted to determine the influence of these groups on fluorescence based on the number of groups and their position in the molecule. Certain nitrofluoresceins are described, together with their behavior on reduction. Reduction of the nitrofluoresceins proved to be a very troublesome and time consuming task. With some modifications to the reduction process, the direct reduction of the compounds can be obtained and the nitramino bodies can be prepared. In the experiment, the researchers used many compounds, for example, 3′,6′-Dihydroxy-5(or 6)-nitro-3H-spiro[isobenzofuran-1,9′-xanthen]-3-one (cas: 78512-32-0Application of 78512-32-0).
3′,6′-Dihydroxy-5(or 6)-nitro-3H-spiro[isobenzofuran-1,9′-xanthen]-3-one (cas: 78512-32-0) belongs to benzofurans derivatives. Benzofurans are only weakly aromatic in nature and they are cleaved by many oxidative and reductive conditions. Substituted benzofurans find applications such as fluorescent sensors, oxidants, in drug discovery, and in another field of chemistry and agriculture.Application of 78512-32-0
Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem