Ochratoxin C
(+)Oxanthromicin
Orsellinic acid
2,4-dihydrox-6-methylbenzoic acid, 6-methyl-beta-Resorcylic acid, Orcinolcarboxylic acid, Orsellic acid+O47
Orsellinic acid dimethylether
2,4-Dimethoxy-6-methylbenzoic acid, 4,6-dimethoxy-o-toluic acid
Oxindole
2-Indolinone, 2-Hydroxyindole
(5E)-7-Oxozeaenol
f 152 B1, iso-LL Z1640-2
hemi-Oxanthromicin
L-Ornithine lactam
(3S)-3-Amino-2-piperidinone
D-Ornithine lactam
(3R)-3-Amino-2-piperidinone