1,4-Cyclohexanebis(methylamine), N,N'-bis(3,4,5,6-tetrahydropyran-2-ylmethyl)-, dihydrochloride, (E)- 1241-26-5 trans-N,N'-Bis((tetrahydro-2H-pyran-2-yl)methyl)-1,4-cyclohexane bis(methylamine)