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The UV-absorption cross sections of CS2 are reported. The absorption spectra were measured by using a diode array spectrometer over the wavelength range of 220-380 nm at room temperature (298 +/- 3)K. The maximum absorption cross section appeared around 315 nm with the value of sigma (315 nm) = 7.184 x 10(-20) cm2 x molecule(-1). The measured data by this study were in good agreement with that reported in the literature, and used to estimate the photolysis of the CS2 in the atmosphere.