A papaver from rhoeas' cell and tissue stain is formulated incorporating a new one bioflavonoid which specifically stains the nucleus for microscopic evaluation in histopathology, microbiology and cytology. It appears to be an alternative to hematoxylin for routine usage. Biochemical name of this compound is hydroxy-7-methoxy-2-(4-methoxy-3-(((2R,3R,4S,5S,6R)-3.4.5-trihydroxy-6-((((2R,3R,4R,5R,6S)-3.4.5-trihydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)methyl)tetrahydro-2H-pyran-2-yl)oxy)phenyl)-4H-chromen- 4-one. NMR analysis shows the biochemical structure of molecule is a bioflavonoid. (FIG. 4,5) Molecule within papaver rhoeas along with the synergistic and other molecules penetrates the biologic and nonbiologic samples. Combining with the other synergistic mechanisms the stain formula is prepared. The amount and type of Mordant and pH are the parameters that affect the quality and timing of the staining results.

A papaver from rhoeas' cell and tissue stain is formulated incorporating a new one bioflavonoid which specifically stains the nucleus for microscopic evaluation in histopathology, microbiology and cytology. It appears to be an alternative to hematoxylin for routine usage. Biochemical name of this compound is hydroxy-7-methoxy-2-(4-methoxy-3-(((2R,3R,4S,5S,6R)-3.4.5-trihydroxy-6-((((2R,3R,4R,5R,6S)-3.4.5-trihydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)methyl)tetrahydro-2H-pyran-2-yl)oxy)phenyl)-4H-chromen- 4-one. NMR analysis shows the biochemical structure of molecule is a bioflavonoid. (FIG. 4,5) Molecule within papaver rhoeas along with the synergistic and other molecules penetrates the biologic and nonbiologic samples. Combining with the other synergistic mechanisms the stain formula is prepared. The amount and type of Mordant and pH are the parameters that affect the quality and timing of the staining results.

The present disclosure provides stabilized hematoxylin formulations having a pH of less than 2.4. The present disclosure also provides methods of using such stabilized hematoxylin formulations to stain biological samples.

The present disclosure provides stabilized hematoxylin formulations having a pH of less than 2.4. The present disclosure also provides methods of using such stabilized hematoxylin formulations to stain biological samples.

A composition for dyeing a bentonite, which includes a plant-derived polyphenol, and a method for dyeing a bentonite using the composition are provided. A composition for dyeing a bentonite, which includes a polyphenol such as lignin, pectin, tannin, and catechin, as a plant-derived material, and a method for dyeing a bentonite using the composition are provided.

A composition for dyeing a bentonite, which includes a plant-derived polyphenol, and a method for dyeing a bentonite using the composition are provided. A composition for dyeing a bentonite, which includes a polyphenol such as lignin, pectin, tannin, and catechin, as a plant-derived material, and a method for dyeing a bentonite using the composition are provided.

The present disclosure provides stabilized hematoxylin formulations having a pH of less than 2.4. The present disclosure also provides methods of using such stabilized hematoxylin formulations to stain biological samples.

A papaver from rhoeas' cell and tissue stain is formulated incorporating a new one bioflavonoid which specifically stains the nucleus for microscopic evaluation in histopathology, microbiology and cytology. It appears to be an alternative to hematoxylin for routine usage. Biochemical name of this compound is hydroxy-7-methoxy-2-(4-methoxy-3-(((2R,3R,4S,5S,6R)-3.4.5-trihydroxy-6-((((2R,3R,4R,5R,6S)-3.4.5-trihydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)methyl)tetrahydro-2H-pyran-2- yl)oxy)phenyl)-4H-chromen-4-one. NMR analysis shows the biochemical structure of molecule is a bioflavonoid. (FIG. 4,5) Molecule within Papaver rhoeas along with the synergistic and other molecules penetrates the biologic and nonbiologic samples. Combining with the other synergistic mechanisms the stain formula is prepared. The amount and type of Mordant and pH are the parameters that affect the quality and timing of the staining results.

A papaver from rhoeas' cell and tissue stain is formulated incorporating a new one bioflavonoid which specifically stains the nucleus for microscopic evaluation in histopathology, microbiology and cytology. It appears to be an alternative to hematoxylin for routine usage. Biochemical name of this compound is hydroxy-7-methoxy-2-(4-methoxy-3-(((2R,3R,4S,5S,6R)-3.4.5-trihydroxy-6-((((2R,3R,4R,5R,6S)-3.4.5-trihydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)methyl)tetrahydro-2H-pyran-2- yl)oxy)phenyl)-4H-chromen-4-one. NMR analysis shows the biochemical structure of molecule is a bioflavonoid. (FIG. 4,5) Molecule within Papaver rhoeas along with the synergistic and other molecules penetrates the biologic and nonbiologic samples. Combining with the other synergistic mechanisms the stain formula is prepared. The amount and type of Mordant and pH are the parameters that affect the quality and timing of the staining results.

A two-component curable epoxy resin system including a dye solution. The resin system includes an epoxy resin component containing at least 80% by weight of a polyglycidyl ether of a polyphenol. The system also includes a hardener mixture containing mainly polyethylene tetraamines. The system includes triethylene diamine in specific amounts as a catalyst. The system has beneficial curing characteristics with desired color that make it useful for producing fiber-reinforced composites in a resin transfer molding process.