Fyllokinon

Fyllokinon
IUPAC-navn
2-methyl-3-[(2E)-3,7,11,15-tetramethylhexadec-2-en-1-yl]naphthokinon
Generelt
Andre navneVitamin K1; phytomenadione; phytonadione
Molekylformel/\/\/Manuel/\/\/
Molarmasse450.70 g/mol
CAS-nummer84-80-0
PubChem4812
SMILESCC1=C(C(=O)c2ccccc2C1=O)C/C=C(\C)/CCC[C@H](C)CCC[C@H](C)CCCC(C)C
ATC KodeB02BA01
DrugBankDB01022
Hvis ikke andet er angivet, er data givet for
stoffer i standardtilstanden (ved 25 °C, 100 kPa)

Fyllokinon, også Vitamin K1, er en polycyklisk aromatisk keton, baseret på 2-methyl-1,4-naphthoquinone, med en 3-fytyl substituent.

Det er et fedtopløseligt vitamin, som er stabilt overfor luft og fugt, men nedbrydes i direkte sollys. Det findes naturligt i en lang række grønne planter, særligt blade, siden det fungerer som en elektronacceptor under fotosyntese, og danner en del af elektrontransportkæden i Fotosystem I.

Det er på World Health Organization's List of Essential Medicines, en liste over den vigtigste medicin der kræves i et grundlæggende sundhedssystem.[1]

Terminologi

Det kaldes ofte vitamin K,[2] phytomenadione eller phytonadione. Somme tider skelnes mellem fyllokinon, der betragtes som naturligt, og fytonadion som betragtes som syntetisk.[3]

Et stereoisomer af fyllokinon kaldes vitamin k1 (med lille bogstav).

Fodnoter

  1. ^ "WHO Model List of Essential Medicines: 18th list" (PDF). World Health Organization. oktober 2013. Arkiveret (PDF) fra originalen 23. april 2014. Hentet 22. april 2014.
  2. ^ Haroon Y, Shearer MJ, Rahim S, Gunn WG, McEnery G, Barkhan P (juni 1982). "The content of phylloquinone (vitamin K1) in human milk, cows' milk, and infant formula foods determined by high-performance liquid chromatography". J. Nutr. 112 (6): 1105-17. PMID 7086539.{{cite journal}}: CS1-vedligeholdelse: Flere navne: authors list (link)
  3. ^ "Vitamin K". Arkiveret fra originalen 15. april 2012. Hentet 2009-03-18.

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