11-Mercaptoundecanoic Acid-d20

11-Mercaptoundecanoic Acid-d20 is a deuterated version of the organic compound 11-Mercaptoundecanoic Acid (MUA). It is used in various applications in the fields of biochemistry, surface chemistry, and nanotechnology. The compound is a carboxylic acid with a thiol group at one end of the molecule, making it a versatile molecule for various chemical reactions. In surface chemistry, MUA-d20 is used as a self-assembled monolayer (SAM) on gold surfaces to modify their surface properties. The thiol group of the molecule binds strongly to the gold surface, while the carboxylic acid group can be used to attach other molecules or nanoparticles. This property makes MUA-d20 a crucial component in the synthesis of gold nanoparticles and other nanomaterials. In biochemistry, MUA-d20 is used as a ligand in protein-protein interactions studies, where the deuterium substitution is crucial for the identification and differentiation of the protein-ligand complex from other molecules in the sample. MUA-d20 can also be used as a matrix in matrix-assisted laser desorption/ionization (MALDI) mass spectrometry. In terms of chemical information, MUA-d20 has a molecular formula of C11H21D20O2S and a molecular weight of 261.46 g/mol. It has a melting point of 70-74°C and a boiling point of 255-257°C. The compound is soluble in most organic solvents and has a pKa of 4.8, making it a weak acid. Overall, MUA-d20 is a versatile and useful compound in various fields of research and technology.