Sigma-Aldrich® Dimethyl sulfoxide-d6 99.9 atom % D, contains 1 % (v/v) TMS

Dimethyl sulfoxide-d 6 (DMSO-d 6 ) is a deuterated solvent and it contains 1%(v/v) TMS (Tetramethylsilane, added as a stabilizer). On photoirradiation in the range of 193 and 222nm, it undergoes decomposition to afford CD 3 radicals. Quantum yields of CD 3 have been evaluated by infrared diode laserabsorption spectroscopy. 100% DMSO-d 6 has been used as solvent in the long-range COSY (Correlation Spectroscopy) experiment.