N-Lactoyl-Phenylalanine (Lac-Phe) is a peptide coupling of lactic acid and phenylalanine, one of the metabolites in acute exercise, which can be used in the study of obesity and metabolism-related diseases.

H-Leu-Leu-OMe HBr (L-Leucyl-L-Leucine methyl ester HBr) is a dipeptide condensation product of L-Leucine methyl ester, a peptide that is toxic to natural killer T-cells and possesses immunosuppressive activity that abrogates all natural killer (NK) cell functions in mixed lymphocyte populations.

1-Methylguanosine is a methylated nucleoside. It is known that some modified, especially methylated, nucleosides originating from RNA degradation are excreted in abnormal levels in the urine of patients with malignant tumors.