CDSD-4000: High-resolution, high-temperature carbon dioxide spectroscopic databank

► We present a high-temperature infrared spectroscopic CO2 databank called CDSD-4000. ► CDSD-4000 can be used to study radiative properties for temperatures 2500-5000 K. ► CDSD-4000 is freely accessible at ftp://ftp.iao.ru/pub/CDSD-4000.