-dione

-dione

[′dī‚ōn]
(organic chemistry)
Suffix indicating the presence of two keto groups.
References in periodicals archive ?
Summary: Two new natural products, tetrahydro-2-benzyl-1H-pyrrolo-[1,2-C] imidazole-1,3(2H) -dione (1) and (1S,4R,4aR,9aS)-4a-methyl-1,4,4a,9a- tetrahydro-1,4-methano-anthracene-9,10-dione (2), together with eleven known compounds (3-13) were isolated from the petroleum ether fraction of the 95% ethanol extract from the tubers of Lepidium meyenii.