Trans-1,2-bis(methylamino)cyclohexane CAS: 67579-81-1 is colorless transparent liquid and raw materials for (1R,2R)-N,N'-dimethyl-1,2 ... CAS: 68737-65-5 and (1S,2S)-(+)-N,N-dimethyl-1,2-cyclohexanediamine CAS: 894493-95-9, by chiral resolution. It ... . UCHEM has been researching and developing C2-symmetric or unsynmmetric 1,2-diaminocyclohexane derivatives as chiral auxiliary for asymmetric synthesis. The ...