1,3,5 Trimethyl 1,3,5 triazacyclohexane

1,3,5-Trimethyl-1,3,5-triazacyclohexane is an organic compound with the formula (CH₃NCH₂)₃. It is a colorless liquid that is soluble in many organic solvents. Structurally, it is one of several related hexahydro-1,3,5-triazines, which typically result from the condensation reaction of amines and formaldehyde.

It undergoes deprotonation by butyllithium to give a reagent that serves as a source of the formyl anion.