Pyranine
Pyranine is a hydrophilic, pH-sensitive fluorescent dye from the group of chemicals known as arylsulfonates. Pyranine is soluble in water and has applications as a coloring agent, biological stain, optical detecting reagent, and a pH indicator. One example would be the measurement of intracellular pH. Pyranine is also found in yellow highlighters, giving them their characteristic fluorescence and bright yellow-green colour. It is also found in some types of soap.
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Hound Dog
by: BRYAN A* You ain't nothin' but a hound dog
Just cryin' all the time
You ain't nothin' but a hound dog
Cryin' all the time
Well, you ain't never caught a rabbit and you ain't no friend of mine
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Well they said you was high classed
Well, that was just a lie
Yeah! they said you was high classed
Well, that was just a lie
Girl you ain't never caught a rabbit and you ain't no friend of mine
[* Repeat]
Well, you ain't never caught a rabbit and you ain't no friend of mine