• 1,5-Pentamethylenetetrazole
• α,β-Cyclopentamethylenetetrazole
• NSC 5729
• NSC 66489
• PTZ
• 6,7,8,9-Tetrahydro-5H-tetrazolo(1,5-A)azepine
• Metrazole
• 6,7,8,9-Tetrahydro-5H-etrazolo[1,5-a]azepine
• alpha,beta-Cyclopentamethylenetetrazole, 1,5-Pentamethylenetetrazole, 6,7,8,9-Tetrahydro-5H-tetrazolo[1,5-a]azepine, Metrazole
• Leptazol
• 6,7,8,9-tetrahydro-5H-tetrazoloazepine
• CARDIAZOLE
• 5H-TETRAZOLOAZEPINE, 6,7,8,9-TETRAHYDRO-,
• 5H-AZEPOTETRAZOLE, 6,7,8,9- TETRAHYDRO-,
• 7,8,9,10-TETRAAZABICYCLO[5.3.0]DECA-8,10-DIENE
• 1,5-PENTAMETHYLENE-1,2,3,4-TETRAZOLE
• metrazol
• Pentylenetetrazol
• Cardiazol
• CENALENE-M
• 5H-Tetrazolo[1,5-a]azepine, 6,7,8,9-tetrahydro-
• Pentetrazol
• Pentetrazole
• 6,7,8,9-Tetrahydro-5H-tetrazolo[1,5-a]azepine, Metrazole, Pentylenetetrazole
• alpha,beta-Cyclopentamethylenetetrazole, 1,5-Pentamethylenetetrazole
• Corazol
• 1,8,9,10-Tetrazabicyclo[5.3.0]deca-7,9-diene
• pentamethylenetetrazol

This compound is available in the following databases:

Wiley Registry of Tandem Mass Spectral Data: MS for ID

Author: Herbert Oberacher, Institute of Legal Medicine, Innsbruck/Austria

The Wiley Registry® of Tandem Mass Spectral Data: MS for ID contains 10,000 positive and negative mode spectra of over 1200 compounds of interest for forensics, toxicology, and pathology. Learn more.

Mass Spectra of Designer Drugs 2024

Author: Peter Rösner

This library enables fast and reliable identification of the latest illegal designer drugs. It is updated annually. Learn more.

KnowItAll NMR Spectral Library

Author: Wiley

The KnowItAll NMR Spectral Library offers a comprehensive collection of NMR reference spectra, including NMR, CNMR, and XNMR, and covers a wide range of compounds including organics, polymers, monomers, metabolites, and more. Learn more.

KnowItAll IR, Raman, and UV-Vis Spectral Libraries

Author: Wiley

The KnowItAll IR, Raman, and UV-Vis spectral libraries offer access to the world's largest collection of IR, Raman, and UV-Vis spectra, including the renowned Sadtler spectra. The libraries include a wide range of compounds from pure organics to industrial compounds. Learn more.

KnowItAll Mass Spectral Library

Author: Wiley

The KnowItAll Mass Spectral Library offers a comprehensive collection of mass spectra, including the renowned Wiley Registry, and access to a wide range of compounds including pure organics, drugs, steroids, additives, geochemicals, petrochemicals, biomarkers, and more. Learn more.