Abstract: The invention concerns activated amphetamine derivatives, a process for their production as well as their use for producing immunogens or detection conjugates carrying amphetamine groups. A further subject matter of the invention are new conjugates carrying amphetamine groups, a process for the production thereof as well as their use for the production of antibodies or for the determination of amphetamine or derivatives thereof.

Abstract: Benzodiazepine protein conjugates of the formula I ##STR1## wherein R1 is hydrogen, a methyl group or R, R2 is hydrogen, a hydroxyl or an OR group, with R1 or R2 containing an R group,R3 is a halogen, NO2 or NH2,X is hydrogen or a halogen,wherein R is a group of the formula II, wherein Z is a macromolecular immunogen reactive carrier substance and n is 2 or 3.The benzodiazepine protein conjugates are used as immunogens to obtain antibodies to benzodiazepines.The invention also relates to an immunoassay for the detection of benzodiazepines where the so generated antibodies are used.

Abstract: The invention concerns new aminoalkylmaleimides of the general formula I ##STR1## in which R.sub.1 and R.sub.2 are the same or different and represent hydrogen or a C.sub.1 -C.sub.4 alkyl group and A represents a straight-chain or branched, saturated or unsaturated alkylene group with 2 to 6 carbon atoms which is interrupted, if desired, by an oxygen or sulphur atom or a carbonyl group, as well as their corresponding acid addition salts.The present invention also concerns amidoalkylmaleimide derivatives formed from compounds of the general formula I and immunological binding partners. In addition, the invention concerns immunological conjugates which can be produced by reaction of the amidoalkylmaleimide derivatives with peptides or proteins.The subject matter of the present invention are also the corresponding processes of production of the compounds according to the present invention as well as the use of these conjugates in diagnostic methods of determination, in particular in immunoassays.

Abstract: The invention concerns a compound of the general formula (I): ##STR1## in which Bi denotes a residue derived by cleavage of a carboxyl group from biotin or from a biotin derivative, R.sup.1 and R.sup.2 denote independently of one another hydrogen or C.sub.1 --C.sub.4 alkyl,n denotes an integer from 4 to 10 andX denotes an alkylene residue with a chain length of 5 to 20 atoms substituted by one or several O or/and S atoms and a conjugate of this compound with a substance that has at least one primary or/and secondary amino group NHR.sup.3.

Abstract: The present invention provides digoxigenin derivatives of the formula: ##STR1## wherein n is a whole number of from 1 to 4 and Z is a carboxyl group or a functional derivative derived therefrom. The present invention also provides digoxigenin conjugates of the general formula: ##STR2## wherein the carrier is an immunogenic carrier material, a nucleic acid or a labelled immunocomponent of a labelled digoxigenin immunoconjugate for use in an immunoassay, m is a number from 1 to the number of coupling positions available on the carrier and Y is the group formed by the reaction of the carboxyl function Z of the digoxigenin derivative of general formula (I) with the reacting position of the carrier material. Also described are uses of these conjugates as nucleic acid probes, immunogens, and in immunoassay.