Methylguanidine (MG) is a guanidine compound deriving from protein catabolism. It is also a product of putrefaction.

7-O-Geranylscopoletin is a natural coumarin from the root of Atalantia monophylla. Various parts of this plant have been used for folk medicine for several purposes such as the treatment of chronic rheumatism, antispasmodic, paralysis, hemiplegia, and stimulant.

The 3X FLAG Peptide is a synthetic peptide of 23 amino acid residue. The Asp-Tyr-Lys-Xaa-Xaa-Asp motif is repeated three times in the peptide.