Vitamin K 1 Definition

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Vitamin K 1:

A family of phylloquinones that contains a ring of 2-methyl-1,4-naphthoquinone and an isoprenoid side chain. Members of this group of vitamin K 1 have only one double bond on the proximal isoprene unit. Rich sources of vitamin K 1 include green plants, algae, and photosynthetic bacteria. Vitamin K1 has antihemorrhagic and prothrombogenic activitiy.

Synonym: aquamephyton, konakion, phytonadione, phytomenadione, phylloquinone, phyllohydroquinone.