N-Acetylneuraminyllacto-N-tetraose a; LST a; Sialyllacto-N-tetraose a; LST-a; a-NeuNAc-(2-3)-b-Gal-(1-3)-b-GlcNAc-(1-3]-b-Gal-(1-4)-Glc; Sialyllacto-N-tetraose a; LS-Tetrasaccharide a; IV3NeuAc-LcOse4; [64003-53-8]; 5-Acetamido-3,5-dideoxy-6-(1,2,3-trihydroxypropyl)hex-2-ulopyranonosyl-(2->6)-[hexopyranosyl-(1->3)]-2-acetamido-2-deoxyhexopyranosy l-(1->3)hexopyranosyl-(1->4)hexose; D-Glucopyranose, O-5-(acetylamino)-3,5-dideoxy-D-glycero-α-D-galacto-2-nonulopyranonosyl-(2->;3)-O-β-D-galactopyranosyl-(1->3)-O-2-(acetylamino)-2-deoxy-β-D-glucopyranosyl-(1->3)-O-β-D-gal actopyranosyl-(1->4)-; (6R)-5-Acetamido-3,5-dideoxy-6-[(1R,2R)-1,2,3-trihydroxypropyl]-β-L-threo-hex-2-ulopyranonosyl-(2->3)-β-D-galactopyranosyl-(1->3)-2-acetamido-2-deoxy-β-D-glucopyranosyl-(1->3)-β-D-galactop yranosyl-(1->4)-D-glucopyranose