A polycarbonate molding composition comprising a homogeneous blend of (i) an aromatic polycarbonate resin and (ii) a stabilizing agent conforming to ##STR11## where R1 and R2 independently denote ##STR12## where R3 is a hydrogen atom, a branched or linear C1 -C20 alkyl or a C1 -C20 cycloalkyl, R5 and R6 independently are a hydrogen atom or a C1 -C3 alkyl radical,x is an integer of about 1 to 70, y