

S-Butyrylthiocholine Iodide (Highly Pure) by Molecular Depot is a S-butyrylthiocholine iodide, a sulfur-containing analogue of butyrylcholine and the substrate of the Ellman butyrylcholinesterase assay. Butyrylcholinesterase, unlike acetylcholinesterase, accepts the larger acyl group, so the choice between the butyryl and the acetyl thiocholine substrate is what distinguishes the two enzymes in a mixed sample. It is used as the substrate in colorimetric butyrylcholinesterase assays, in cholinesterase inhibitor and pesticide screening and in clinical chemistry research. Each unit contains 1 g. MBP supplies Molecular Depot research reagents to research labs in the United States, Canada and worldwide.