AbstractThe crystal structure of the stereoisomer m.p. 130° of 2,4,6‐trimethylpimelic acid has been determined by three‐dimensionalX‐ray analysis. The cristals are monoclinic,a= 10.35,b= 10.70,c= 11.61 Å, β = 110°12′,Z= 4, space groupP2 1/c, the structure has been solved by direct methods and refined by least‐squares methods.The configuration of the acid is given by formula I; the chirality of the asymmetric centres is (2