Piperazine

Piperazine is an organic compound with the molecular formula C4H10N2.

Formula
C4H10N2
Molar mass
86.14 g/mol
Also known as
Diethylenediamine, 1,4-Diazacyclohexane, Hexahydropyrazine, Piperazin, Antiren, Piperazidine

Overview

Piperazine is an organic compound with the molecular formula C4H10N2.

Identifiers

Formula
C4H10N2
Molar mass
86.14 g/mol
Also known as
Diethylenediamine, 1,4-Diazacyclohexane, Hexahydropyrazine, Piperazin, Antiren, Piperazidine
Chemical identifiers
SMILES
C1CNCCN1
InChI
InChI=1S/C4H10N2/c1-2-6-4-3-5-1/h5-6H,1-4H2
PubChem CID
4837

Properties

Melting Point
106 °C
Boiling Point
146 °C
Density
1.1 g/cu cm
Water solubility
Freely soluble in water.

References

  1. PubChem Compound Summary: Piperazine (CID 4837)National Center for Biotechnology Information · PubChem

    Identity, molecular formula, molecular weight and aliases retrieved via PUG REST on 2026-09-08.

  2. Hazardous Substances Data Bank (HSDB): Piperazine — melting pointHazardous Substances Data Bank (HSDB)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/4837#section=Melting-Point. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: O'Neil, M.J. (ed.). The Merck Index - An Encyclopedia of Chemicals, Drugs, and Biologicals. 13th Edition, Whitehouse Station, NJ: Merck and Co., Inc., 2001., p. 1337

  3. Hazardous Substances Data Bank (HSDB): Piperazine — boiling pointHazardous Substances Data Bank (HSDB)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/4837#section=Boiling-Point. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: O'Neil, M.J. (ed.). The Merck Index - An Encyclopedia of Chemicals, Drugs, and Biologicals. 13th Edition, Whitehouse Station, NJ: Merck and Co., Inc., 2001., p. 1337

  4. Hazardous Substances Data Bank (HSDB): Piperazine — densityHazardous Substances Data Bank (HSDB)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/4837#section=Density. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: Lewis, R.J. Sax's Dangerous Properties of Industrial Materials. 10th ed. Volumes 1-3 New York, NY: John Wiley & Sons Inc., 1999., p. 2972

  5. Hazardous Substances Data Bank (HSDB): Piperazine — solubilityHazardous Substances Data Bank (HSDB)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/4837#section=Solubility. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: O'Neil, M.J. (ed.). The Merck Index - An Encyclopedia of Chemicals, Drugs, and Biologicals. 13th Edition, Whitehouse Station, NJ: Merck and Co., Inc., 2001., p. 1337