Lacto-N-triaose is an oligosaccharide.

Beta-D-Gal-(1->3)-beta-D-GlcNAc-(1->3)-beta-D-Gal-(1->4)-D-Glc is a tetrasaccharide comprising residues of galactose, N-acetylglucosamine, galactose and glucose in a linear sequence, all joined by beta-linkages. It is a glucosamine oligosaccharide and an amino tetrasaccharide.

N-Acetylneuraminic acid is a nine-carbon, sialic acid monosaccharide commonly found in glycoproteins on cell membranes and in glycolipids such as gangliosides in mammalian cells.Synthesis of pyrrolidine analogues of N‐acetylneuraminic acid could as potential sialidase inhibitors. N-Acetylneuraminic acid-containing substances has growth-promoting effects on bifidobacteria, a number of N-acetylneuraminic acid-based compounds as potential rotavirus inhibitors. N-acetyl-beta-neuraminic acid is N-Acetylneuraminic acid with beta configuration at the anomeric centre. It has a role as an epitope. It is functionally related to a beta-neuraminic acid. It is a conjugate acid of a N-acetyl-beta-neuraminate.

L-methionine is the L-enantiomer of methionine. It has a role as a micronutrient, a nutraceutical, an antidote to paracetamol poisoning, a mouse metabolite and a human metabolite. It is a L-alpha-amino acid, a methionine, an aspartate family amino acid and a proteinogenic amino acid. It is a conjugate base of a L-methioninium. It is a conjugate acid of a L-methioninate. It is an enantiomer of a D-methionine. It is a tautomer of a L-methionine zwitterion. L-Methionine is marker of cell viability and estimating proliferative activity. L-Methionine and L-cystine can improve hyperlipidemia by restoring LPL and HSL activities, it also might be a new potential drug for Parkinson's disease treatment.