[A group of substances similar to VITAMIN K 1 which contains a ring of 2-methyl-1,4-naphthoquinione and an isoprenoid side chain of varying number of isoprene units. In vitamin K 2, each isoprene unit contains a double bond. They are produced by bacteria including the normal intestinal flora. ( MSH )]
UMLS (CSP) C0086605 - Lipid
- Pharmacologic Substance
- Vitamin