N-methylnicotinamide is a metabolite of niacin (or nicotinamide) and is commonly found in human urine. However low levels of urinary excretion of N-methylnicotinamide indicates niacin deficiency. In patients with liver cirrhosis nicotinamide methylation is increased leading to a rise in urinary N-methylnicotinamide. N-methylnicotinamide has been found to be a microbial metabolite.

HATU is a reagent used in peptide coupling chemistry to generate an active ester from a carboxylic acid.

Pelargonidin3-O-[6-O-malonyl]-glucoside