Time-resolved ultraviolet-visible absorption spectroscopy has been coupled with 248 nm laser flash photolysis of Cl2CO in the presence of DMS (CH3SCH3) (and in some cases O-2, NO, or NO2) to generate the Cl-S(CH3)(2) radical adduct in the gas phase and study the spectroscopy and kinetics of this species. The Cl-S(CH3)2 adduct was found to possess a strong, broad, unstructured absorption spectrum, extending from ca. 450 nm to below 280 nm with sigma(max) = (3.48 +/- 1.04) x 10(-17) cm(2) molec(-1) at lambda(max) approximate to 340 nm. Reaction of the adduct with O-2 was not observed, and our data suggest that the rate coefficient for this reaction at 298 K is less than 4 x 10(-18) cm(3) molec(-1) s(-1). Rate coefficients for Cl-S(CH3)(2) reactions with NO (k(NO)) and NO2 (k(NO2)) were measured at 155 Torr total pressure and room temperature, and were found to be k(NO) = (1.19 +/- 0.18) x 10(-11) cm(3) molec(-1) s(-1) and k(NO2) = (2.70 +/- 0.41) x 10(-11) cm(3) molec(-1) s(-1), where the uncertainties are estimates of accuracy at the 95% confidence level. The spectroscopic and kinetic data are used to evaluate the relative importance of possible atmospheric destruction mechanisms for Cl-S(CH3)(2).