Novel taurine derivatives of general formula (I) ##STR1## (wherein R.sup.1 is nicotinoyl, 3,4,5-trimethoxybenzoyl or acetylsalicyloyl and R.sup.2 is as defined for R.sup.1 or is --CH.sub.2 CH.sub.2 OR.sup.1) have antilipemic and choleretic activities. The compound in which R.sup.2 .dbd.--CH.sub.2 CH.sub.2 OR.sup.1 and R.sup.1 is acetylsalicyloyl exhibits high antiinflammatory, analgesic and antipyretic activity and is essentially free of the unfavorable effect of acetylsalicylic acid on the stomach.
Cationic dyeable copolyester polymer and yarns made therefrom having as an integral part of the polymer chain, sulfonamide groups each containing a dye sensitizing unit, derived from alkaline earth or alkali metal salts of sulfonated sulfonamides such as the sodium salt of N-(.beta.-hydroxyethyl)-N-(3-carbomethoxybenzenesulfonyl) taurine.