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факела
pirokatechina
OpenDict entry
pyrocatechol N
pyrocatechol
pirokatechina f
PONS OpenDict

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Monolingual examples (not verified by PONS Editors)
Heating catechin past its point of decomposition releases pyrocatechol (also called catechol), which explains the common origin of the names of these compounds.
en.wikipedia.org
Pyrocatechol is now simply referred to as catechol.
en.wikipedia.org
It does not form a precipitate with lead acetate solution, as does the isomeric pyrocatechol.
en.wikipedia.org
The polyphenols in the leaf (allyl pyrocatechol, hydroxyl-chavicol) not only fight microbes but act as pain relievers and anti-inflammatory agents.
www.thehindu.com

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