| 释义 |
men·a·di·one
\ˌmenəˈdīˌōn\ noun
(-s)
Etymology: methyl + naphthoquinone + -dione
: a yellow crystalline compound C11H8O2 that is usually made by oxidation of beta-methylnaphthalene, that has the biological activity of natural vitamin K to which it is chemically related, and that is often administered in the form of a water-soluble white crystalline addition compound with sodium bisulfite; 2-methyl-1,4-naphthoquinone — called also vitamin K3 |