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Usage

Uses

Used in Industrial Ink and Dye Sectors:
3',6'-Dimethoxyfluoran is used as a color-forming agent in the industrial ink and dye sectors. Its ability to induce a change in color when exposed to heat or changes in pH levels makes it particularly suitable for the production of thermo/pH sensitive inks.
Used in Thermo/PH Sensitive Inks:
In the field of thermo/pH sensitive inks, 3',6'-Dimethoxyfluoran is used as a key component for its color-changing properties. This characteristic is highly valuable in applications where temperature or pH level changes need to be visually indicated, such as in security inks or temperature-sensitive labels.

Upstream product

• 77-78-1 dimethyl sulfate 
• 2321-07-5 fluorescein 
• 85-44-9 phthalic anhydride 
• 150-19-6 O-methylresorcine 
• 74-88-4 methyl iodide 

Downstream Products

• 1431371-12-8 3',6'-dimethoxy-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthen]-2'-yl benzoate 

Relevant academic research and scientific papers

5-hydroxymethylfurfural- and fluorescein-fused fluorescence probe of mast cells (RBL-2H3): Synthesis, photophysical properties, and bioimaging

A fluorescent probe (Fluo-HMF) was developed via introduction of a furfural moiety into the fluorescein molecular skeleton, aiming at specially labeling cell membrane of mast cells. To illustrate its specificity, we designed and synthesized a series of fluorescent compounds based on fluorescein molecular skeleton. The fluorescent properties of Fluo-HMF were investigated, which were in accordance with theoretical calculations. Compared with other fluorescein derivatives, Fluo-HMF could specially label RBL-2H3 cells. The results suggested that Fluo-HMF could be used as a fluorescent probe for bioimaging on some related research of allergic mechanism.

Ti(IV) doping: An effective strategy to boost Lewis acidic performance of ZnO catalyst in fluorescein dye synthesis

Zn1-xTixO NPs were efficiently synthesized using a simple solution free mechanochemical method. The synthesized ZnO and Ti(IV)-doped ZnO catalysts are exhibited polycrystallinity, a hexagonal crystal structure, and roughly spherical agglomerates. The surface areas of the Zn1-xTixO catalysts were positively correlated with the doping percentage of Ti(IV), which also enhanced the Lewis acidity of the NPs. The catalysts exhibited excellent activity during the synthesis of fluorescein dyes. This methodology was also extended to sulfone-fluorescein dye synthesis.

NbCl5-Promoted Synthesis of Fluorescein Dye Derivatives: Spectroscopic and Spectrometric Characterization and Their Application in Dye-Sensitized Solar Cells

Fluorescein has several applications owing to its properties, such as high molar absorptivity, high fluorescence quantum yield, high photostability, and wavelengths of absorption and emission in the visible region. The syntheses of fluorescein derivatives between phenol and anhydride derivatives by using NbCl5 as a Lewis acid is described. The products have high yields and short reaction times are observed. The study of the UV/Vis and fluorescence spectra of these derivatives and their application in dye-sensitized solar cells is also described.

Visible-light-triggered direct benzoyloxylation of electron-rich arenes at room temperature without chelation assistance

A RuII photocatalytic method was developed for the direct mono-benzoyloxylation of electron-rich aromatic and heteroaromatic systems even with an excess amount of benzoyl peroxide. The reaction was conducted at room temperature under visible light. The direct ArC-H benzoyloxylations occur without the assistance of any directing groups and can also tolerate various functional groups that have already shown diverse reactivities in transition-metal catalysis.