Colominic acidsodium salt, also known as polysialicacidsodium salt, is naturally isolated from the cell wall of Escherichia coli and animals. It exhibits a red color with an absorption maximum of 530 nm and possesses anti-bacterial activity.
L-Glyceric acidsodium is a urinary metabolite predominantly found in individuals with the rare inherited metabolic disorder, L-glyceric aciduria. This compound serves as a diagnostic tool for identifying primary hyperoxaluria type 2 (PH2) and can be used to differentiate between PH1 and PH2 based on its excretion pattern.