Novel bis-1,2-naphthoquinone-2-diazide-sulfonic acid amides of secondary diamines, which amides are represented by the formula ##STR1## in which R is a straight-chain or branched, unsubstituted or hydroxyl-substituted alkyl, cycloalkyl or aralkyl radical which has 1 to 14 carbon atoms and which includes a carbon chain that can be interrupted by either oxygen atoms,R.sub.1 is an alkylene radical which has 2 to 12 carbon atoms and which includes a carbon chain that can be interrupted by ether oxygen atoms, or a mononuclear or polynuclear aralkylene radical which has 8 to 18 carbon atoms and which can, when it is a polynuclear radical, comprise aromatic members that are linked by a single bond, by --O--, --S--, --CO-- or --CR.sub.2 R.sub.3 --, --N[C.sub.1-3 -alkyl]CO-- or a C.sub.2-5 -alkyl group which can be interrupted by ether oxygen atoms, andR.sub.2 and R.sub.3 can be identical or different, and are separately hydrogen or an alkyl radical which is unsubstituted or substituted and which has 1 or 2 carbon atoms, orR and R.sub.1 together form a cycloalkyl radical which has 4 to 16 carbon atoms and which can, when it is a polynuclear radical, comprise cycloaliphatic moieties that are linked by a carbon chain having 1 to 6 carbon atoms,andD.sub.1 and D.sub.2 are identical or different and are 1,2-naphthoquinone-2-diazide-4- or -5-sulfonyl radicals.The compounds can be used as radiation-sensitive components in radiation-sensitive mixtures for copying materials, as they are characterized by good absorption in the range from 300 to 350 nm.