The object of the invention is a compound of formula (I), or a stereoisomer or salt thereof, wherein R1 and R2 are selected from the group consisting of N, N+—CH3, N+—C2H5, N+—C3H8, N+—C4H5, N+—CH2C6H5 wherein at least one of R1, R2 is not N. n and m are independently chosen from the group consisting of 0, 1 and 2; X is selected from the group consisting of O, NH, S, CH2 k is 1 or 2 Y is either void or selected from the group of —CH2—, —CH2CH2—, —CH2O—, —CH2S—, —CH2NH—, —CH2CH2O—, —CH2CH2NH—, —CH2CH2S— R3, R4, R5, R6 are selected from the group consisting of H, OH, OCH3, or OCH2CH3; wherein R3 and R4 may be the same or different; R5 and R6 may be the same or different; if either of R3, R4 is different than OH than R5 and R6 are both OH; if either of R5, R6 is different than OH than R3 and R4 are both OH. The object of the invention is also a composition comprising the compound of the invention, an RNA molecule incorporating the same, uses thereof and a method of synthesizing, in vitro or in vivo, the RNA molecule, as well as a method of synthesizing a protein or peptide in vitro, or in vivo or in cultured cells, said method comprising translating the RNA molecule.