Species with data from:

An, X.-W.; Zhang, Z.-L.; Wang, S.-N.; Yan, J.-Q.; Hu, R.-H., Investigation on bond energies: the heat of combustion of hippuric acid, piperazine and azacycloheptane, Acta Chim. Sin., 1981, 39, 485-492.

3 matching species were found.

For each matching species the following will be displayed:

• Chemical name
• Chemical formula
• Structure image (if available)

Click on the name to see more data.

1. Piperazine (C₄H₁₀N₂)
   
2. Hexamethylenimine (C₆H₁₃N)
   
3. Hippuric acid (C₉H₉NO₃)
   

© 2026 by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved.

Copyright for NIST Standard Reference Data is governed by the Standard Reference Data Act.