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What (who) is 6,6-Difluoronorethisterone - definition
6,6-Difluoronorethisterone
CHEMICAL COMPOUND
6,6-difluoronorethisterone; Difluoronorethisterone
6,6-Difluoronorethisterone, also known as 6,6-difluoro-17α-ethynyl-19-nortestosterone or as 6,6-difluoro-17α-ethynylestr-4-en-17β-ol-3-one, is a steroidal progestin of the 19-nortestosterone group that was described in 1971 but was never marketed. It is a fluorinated derivative of norethisterone.
6,6-Difluoronorethisterone acetate
6,6-Difluoronorethisterone acetate, also known as 6,6-difluoro-17α-ethynyl-19-nortestosterone 17β-acetate or as 6,6-difluoro-17α-ethynylestr-4-en-17β-ol-3-one 17β-acetate, is a steroidal progestin of the 19-nortestosterone group which was never marketed. In comparison to other steroids, is the C17β acetate ester of 6,6-difluoronorethisterone and the 6,6-difluoro analog of norethisterone acetate.
Tyrian purple
![shells]] of ''[[Bolinus brandaris]]'', the spiny dye-murex, a source of the dye](https://commons.wikimedia.org/wiki/Special:FilePath/Haustellum brandaris 000.jpg?width=200 "shells]] of ''[[Bolinus brandaris]]'', the spiny dye-murex, a source of the dye")
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![Phoenician]] coin depicting the legend of the dog biting the sea snail](https://commons.wikimedia.org/wiki/Special:FilePath/OldGreekPhoenikianCoinPurpur2000.jpg?width=200 "Phoenician]] coin depicting the legend of the dog biting the sea snail")
![The Discovery of Purple by Hercules's Dog]]'' by [[Theodoor van Thulden]], c. 1636](https://commons.wikimedia.org/wiki/Special:FilePath/Theodoor van Thulden - The Discovery of Purple.jpg?width=200 "The Discovery of Purple by Hercules's Dog]]'' by [[Theodoor van Thulden]], c. 1636")
![A set of ''[[Tzitzit]]'', four tassels or "fringes" with [[tekhelet]] (purple-blue) threads produced from a ''Hexaplex trunculus'' based dye.](https://commons.wikimedia.org/wiki/Special:FilePath/Heb cover hi.jpg?width=200 "A set of ''[[Tzitzit]]'', four tassels or \"fringes\" with [[tekhelet]] (purple-blue) threads produced from a ''Hexaplex trunculus'' based dye.")
![Etruscan]] tomb (about 350 BCE).](https://commons.wikimedia.org/wiki/Special:FilePath/Contemporary portrayal of a toga picta.jpg?width=200 "Etruscan]] tomb (about 350 BCE).")
![A medieval depiction of the coronation of the Emperor [[Charlemagne]] in 800 CE wearing royal blue. The bishops and cardinals wear Tyrian purple, and the Pope wears white.](https://commons.wikimedia.org/wiki/Special:FilePath/Karl den store krons av leo III.jpg?width=200 "A medieval depiction of the coronation of the Emperor [[Charlemagne]] in 800 CE wearing royal blue. The bishops and cardinals wear Tyrian purple, and the Pope wears white.")
![A fragment of the shroud in which the Emperor [[Charlemagne]] was buried in 814 CE. It was made of gold and Tyrian purple from Constantinople.](https://commons.wikimedia.org/wiki/Special:FilePath/Shroud of Charlemagne manufactured in Constantinople 814.jpg?width=200 "A fragment of the shroud in which the Emperor [[Charlemagne]] was buried in 814 CE. It was made of gold and Tyrian purple from Constantinople.")
CHEMICAL COMPOUND
Tyrian Purple; Tyrian dye; Phoinikies; Imperial purple; Tyrian purples; Πορφύρα; Royal purple (dye); Royal Purple; Royal purple; Punicin; Purple Dye; Tyrrhenian purple; Tyrian red; Purple of Tyre; Tyre Purple; 66023C
¦ noun see purple.
