5-amino-1-tert-butyl-1H-pyrazole-4-carbonitrile

Also known as: 5-amino-1-tert-butyl-4-cyanopyrazole, 5-amino-1-tert-butylpyrazole-4-carbonitrile, 1-tert-butyl-4-cyano-5-aminopyrazole, 1-tert-butyl-5-amino-1H-pyrazole-4-carbonitrile, 5-amino-1-(tert-butyl)pyrazole-4-carbonitrile, 5-amino-1-(t-butyl)pyrazole-4-carbonitrile, BUTTPARK 51\09-68

5-amino-1-tert-butyl-1H-pyrazole-4-carbonitrile (CAS 158001-28-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H12N4 and a molecular weight of 164.20800 g/mol. Key properties include a boiling point of 325.7ºC at 760 mmHg, a density of 1.13g/cm3 and a flash point of 150.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 158001-28-6
Jingsj CID: J-1313917-8
Molecular Formula: C₈H₁₂N₄
Molecular Weight: 164.20800 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	325.7ºC at 760 mmHg
Density	1.13g/cm3
Flash Point	150.8ºC
Exact Mass	164.10600
PSA	67.63000
LogP	1.67318
Vapor Pressure	0.000226mmHg at 25°C
Refractive Index	1.573

Customs & Trade Information

HS Code	2933199090
Summary	2933199090. other compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 5-amino-1-tert-butyl-1H-pyrazole-4-carbonitrile?

The CAS number of 5-amino-1-tert-butyl-1H-pyrazole-4-carbonitrile is 158001-28-6.

What are the molecular formula and molecular weight of 5-amino-1-tert-butyl-1H-pyrazole-4-carbonitrile?

5-amino-1-tert-butyl-1H-pyrazole-4-carbonitrile has molecular formula C8H12N4 and molecular weight 164.20800 g/mol.

What are the upstream and downstream products of 5-amino-1-tert-butyl-1H-pyrazole-4-carbonitrile?

For 5-amino-1-tert-butyl-1H-pyrazole-4-carbonitrile, Upstream Products: tert-Butylhydrazine, Ethoxymethylenemalononitrile, tert-Butylhydrazine hydrochloride.

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

Last updated: 8/21/2026

How to cite: Jingsj. "5-amino-1-tert-butyl-1H-pyrazole-4-carbonitrile (CAS 158001-28-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1313917-8 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.