3-Amino-5-ethyl-1H-pyrazole-4-carbonitrile

3-氨基-5-乙基-1H-吡唑-4-甲腈

Also known as: USAF EL-35, 1H-Pyrazole-4-carbonitrile, 3-amino-5-ethyl-, 3-Amino-4-cyano-5-ethyl pyrazole, Pyrazole,3-amino-4-cyano-5-ethyl

3-Amino-5-ethyl-1H-pyrazole-4-carbonitrile (CAS 63680-91-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H8N4 and a molecular weight of 136.15500 g/mol. It is also known as USAF EL-35, 1H-Pyrazole-4-carbonitrile, 3-amino-5-ethyl- and 3-Amino-4-cyano-5-ethyl pyrazole. Key properties include a boiling point of 387.7ºC at 760 mmHg, a density of 1.25g/cm3 and a flash point of 188.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
63680-91-1
Jingsj CID
J-1027999-7
Molecular Formula
C6H8N4
Chinese Name
3-氨基-5-乙基-1H-吡唑-4-甲腈
Molecular Weight
136.15500 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point387.7ºC at 760 mmHg
Density1.25g/cm3
Flash Point188.3ºC

Frequently Asked Questions

What is the CAS number of 3-Amino-5-ethyl-1H-pyrazole-4-carbonitrile?

The CAS number of 3-Amino-5-ethyl-1H-pyrazole-4-carbonitrile is 63680-91-1.

What are the molecular formula and molecular weight of 3-Amino-5-ethyl-1H-pyrazole-4-carbonitrile?

3-Amino-5-ethyl-1H-pyrazole-4-carbonitrile has molecular formula C6H8N4 and molecular weight 136.15500 g/mol.

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

Last updated:

How to cite: Jingsj. "3-Amino-5-ethyl-1H-pyrazole-4-carbonitrile (CAS 63680-91-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1027999-7 (accessed 2026-10-25).

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