3-(tert-Butyl)-1-(4-nitrophenyl)-1H-pyrazol-5-amine

3-叔丁基-1-(4-硝基苯基)-1H-吡唑-5-胺

Also known as: 1H-Pyrazol-5-amine, 3-(1,1-dimethylethyl)-1-(4-nitrophenyl)-, 5-TERT-BUTYL-2-(4-NITRO-PHENYL)-2H-PYRAZOL-3-YLAMINE, 5-tert-butyl-2-(4-nitrophenyl)-2H-pyrazol-3-ylamine, 5-tert-butyl-2-(4-nitrophenyl)-3-pyrazolamine, 5-tert-butyl-2-(4-nitrophenyl)pyrazol-3-amine, 3-TERT-BUTYL-1-(4-NITROPHENYL)-1H-PYRAZOL-5-AMINE

3-(tert-Butyl)-1-(4-nitrophenyl)-1H-pyrazol-5-amine (CAS 251658-55-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C13H16N4O2 and a molecular weight of 260.29200 g/mol. It is also known as 1H-Pyrazol-5-amine, 3-(1,1-dimethylethyl)-1-(4-nitrophenyl)-, 5-TERT-BUTYL-2-(4-NITRO-PHENYL)-2H-PYRAZOL-3-YLAMINE and 5-tert-butyl-2-(4-nitrophenyl)-2H-pyrazol-3-ylamine. Key properties include a melting point of 164-167ºC, a boiling point of 431.7ºC at 760 mmHg, a density of 1.26g/cm3 and a flash point of 214.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
251658-55-6
Jingsj CID
J-1148879-8
Molecular Formula
C13H16N4O2
Chinese Name
3-叔丁基-1-(4-硝基苯基)-1H-吡唑-5-胺
Molecular Weight
260.29200 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point164-167ºC
Boiling Point431.7ºC at 760 mmHg
Density1.26g/cm3
Flash Point214.9ºC

Frequently Asked Questions

What is the CAS number of 3-(tert-Butyl)-1-(4-nitrophenyl)-1H-pyrazol-5-amine?

The CAS number of 3-(tert-Butyl)-1-(4-nitrophenyl)-1H-pyrazol-5-amine is 251658-55-6.

What are the molecular formula and molecular weight of 3-(tert-Butyl)-1-(4-nitrophenyl)-1H-pyrazol-5-amine?

3-(tert-Butyl)-1-(4-nitrophenyl)-1H-pyrazol-5-amine has molecular formula C13H16N4O2 and molecular weight 260.29200 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "3-(tert-Butyl)-1-(4-nitrophenyl)-1H-pyrazol-5-amine (CAS 251658-55-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1148879-8 (accessed 2026-10-24).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.