Dehydropipernonaline is a useful organic compound for research related to life sciences.

5-Methylcytosine is a methylated nucleotide base found in eukaryotic DNA. In animals the DNA methylation of cytosine to form 5-methylcytosine is found primarily in the palindromic sequence CpG. In plants the methylated sequence is CpNpGp where N can be any base. 5-Methylcytosine is an epigenetic modification formed by the action of DNA methyltransferases.

Hyaluronic acid (HA) is an anionic nonsulfated glycosaminoglycan distributed widely throughout connective epithelial and neural tissues. It is unique among glycosaminoglycans in that it is nonsulfated forms in the plasma membrane instead of the Golgi and can be very large with its molecular weight often reaching the millions.