Mycolic acid IIb

β-Hydroxy-2-(18-methoxy-1,19-dimethylheptatriacontyl)-α-tetracosylcyclopropanenonadecanoic acid

2-(Tetracosane-1-yl)-3-hydroxy-20,21-methylene-39-methoxy-22,40-dimethyloctapentacontanoic acid