1-propanaminium, 3-[4-[2-(acetylamino)ethyl]-2,6-dibromophenoxy]-1-carboxy-N,N,N-trimethyl-, inner salt, (1R)- 4-{4-[2-(acetylamino)ethyl]-2,6-dibromophenoxy}-2-(trimethylammonio)butanoate InChI=1/C17H24Br2N2O4/c1-11(22)20-7-5-12-9-13(18)16(14(19)10-12)25-8-6-15(17(23)24)21(2,3)4/h9-10,15H,5-8H2,1-4H3,(H-,20,22,23,24)/t15-/m1/s Nakirodin A