
1) Flavine 2) Quercetin
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1) Ketone 2) Quercetin
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https://www.crosswordclues.com/clue/flavin

• (n.) A yellow, vegetable dyestuff, resembling quercitron.
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http://thinkexist.com/dictionary/meaning/flavin/

any of a group of pale-yellow, greenly fluorescent biological pigments (biochromes) widely distributed in small quantities in plant and animal ... [1 related articles]
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http://www.britannica.com/eb/a-z/f/35

<biochemistry> A derivative of riboflavin (vitamin B2) which can exist as a chemical group of other important biomolecules such as flavin adenine dinucleotide or flavin mononucleotide. ... (09 Oct 1997) ...
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http://www.encyclo.co.uk/local/20973

(fla´vin) any of a group of water-soluble yellow pigments widely distributed in animals and plants, including riboflavin and yellow enzymes. flavin adenine dinucleotide(FAD) a coenzyme that forms the prosthetic group (non-protein component) of certain enzymes, including ...
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http://www.encyclo.co.uk/local/21001

Group of variously substituted derivatives of 7,8-dimethylisoalloxazine. Yellow coloured. The flavin group is found in FAD, FADH and flavoproteins. Not to be confused with flavan and flavones.
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Fla'vin noun [ Latin
flavus yellow.]
(Chemistry) A yellow, vegetable dyestuff, resembling quercitron.
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http://www.encyclo.co.uk/webster/F/40

Type: Term Pronunciation: flā′vin, -vēn, flav′in, -ēn Definitions: 1. A yellow acridine dye, preparations of which are used as antiseptics. Synonyms: riboflavin
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http://www.medilexicon.com/medicaldictionary.php?t=33929

[
n] - a ketone that forms the nucleus of certain natural yellow pigments like riboflavin
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http://www.webdictionary.co.uk/definition.php?query=flavin

flavin, flavine 1. A brownish-red crystalline powder, used as an antiseptic. 2. Any of various water-soluble yellow pigments, including riboflavin, found in plant and animal tissue as coenzymes of flavoprotein. 3. A ketone that gives color to various natural yellow pigments.
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a complex heterocyclic ketone that is common to the nonprotein part of several important yellow enzymes, the flavoproteins. · quercetin.
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https://www.infoplease.com/dictionary/flavin
No exact match found.