1,3-Cyclohexanediamine, 4-methyl- (8CI,9CI) 13897-55-7 2,4-Cyclohexanediamine, 1-methyl- 2,4-Diamino-1-methylcyclohexane 2,4-Diaminomethylcyclohexane 4-Methyl-1,3-cyclohexanediamine 4-Methylcyclohexane-1,3-diamine EINECS 237-666-9