24996-75-6

Basic information

• Product Name: 1,1,4,4-tetramethylpiperazinediium dibromide
• CAS NO: 24996-75-6
• Molecular Formula: C₈H₂₀Br₂N₂
• Molecular Weight: 304.0658
• Mol File: 24996-75-6.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: 1,1,4,4-tetramethylpiperazinediium dibromide(CAS DataBase Reference)
• NIST Chemistry Reference: 1,1,4,4-tetramethylpiperazinediium dibromide(24996-75-6)
• EPA Substance Registry System: 1,1,4,4-tetramethylpiperazinediium dibromide(24996-75-6)

Safety Data

• Hazardous Substances Data: 24996-75-6(Hazardous Substances Data)

Upstream product

• 106-58-1 N,N'-dimethylpiperazine 
• 74-83-9 methyl bromide 
• 110-18-9 N,N,N,N,-tetramethylethylenediamine 
• 106-93-4 ethylene dibromide 
• 111-24-0 1,5-dibromo-pentane 
• 51-80-9 bis-(dimethylamino)methane 
• 5459-68-7 2-(N,N-dimethylamino)ethyl bromide 

Relevant articles and documents

Heats of Solution and Viscosity B Coefficients for Some Cyclic Mono- and Bis(quaternary ammonium) Salts

Heats of solution and viscosity B coefficients, for cyclic mono(quaternary ammonium) salts, (CH3)2N(CH2)nBr (n=4-6) and cyclic bis(quaternary ammonium) salts, (CH3)2N((CH2)2)(CH2)nN(CH3)2Br2 (n=1-3) in water were measured, and the effect of structural changes in the solvent water upon the dissolution of both series of electrolytes is discussed.

Preparation, reactions, and spectroscopic investigation of the 1,1,3,3-tetramethylimidazolidinium and 1,1,4,4-tetramethylpiperazonium dications

The title dictations are prepared in a single step by the reaction of N,N,N',N'-tetramethyl-1,2-diaminoethane (tmen) with the halogenoalkanes CH2X2 (X = Cl, Br, or I) or CH2XCH2X (X = Cl or Br), respectively.These bulky dications are useful for the precipitation of complex ions from solution, and show selectivity for doubly-charged anions.Tmen also reacts with CBr4 to yield a dibromo-imidazolidinium heterocyclic dication, whereas reaction with CHBr2CHBr2 produces the dihydrobromide of tmen.Vibration and nmr spectra are reported, and the protons of the CH2 group between the two quaternary nitrogen atoms of the tetramethylimidazolidinium dication are shown from the nmr data to possess acidic character.