Undecanedicarboxylic acid is an unusual odd-numbered dicarboxylic acid that appears in the urines of children with neonatal adrenoleukodystrophy and Zellweger syndrome as an additional marker of these peroxisomal disorders.

3’-Deoxythymidine inhibits the ability of bacteriophage T7 to infect Escherichia coli by inhibiting phage DNA synthesis. Also, it is a precursor of DNA polymerase β inhibitor.

4-Methoxy-17-estradiol is one of the estrogen metabolites and a methylation metabolite of 4-hydroxyestradiol.