Vitamin K4
# Vitamin K4

Vitamin $K_4$ is a name for one or more specific compounds with vitamin K activity.

$K_4$ may refer to menadiol or to various menadiol esters, like menadiol diacetate (acetomenaphthone), menadiol dibutyrate or menadiol dimalonate. $K_4$ may also mean various phosphate or sulfate salts, like menadiol sodium diphosphate or menadiol sodium disulfate.

* Menadiol
* Menadiol diacetate
* Menadiol dibutyrate
