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1-ethyl-1H-pyrazole-4-carbaldehyde

1-乙基-1H-吡唑-4-甲醛

Also known as: 1-ETHYL-1H-PYRAZOLE-4-CARBALDEHYDE, 1-ETHYL-1H-PYRAZOLE-4-CARBOXALDEHYDE, 1-ethylpyrazole-4-carbaldehyde, 1H-Pyrazole-4-carboxaldehyde, 1-ethyl-, AKOS B000402, AKOS PAO-0266, ART-CHEM-BB B000402, BUTTPARK 121\06-90, CHEMBRDG-BB 4003132, MFCD02090888, TIMTEC-BB SBB000003

1-ethyl-1H-pyrazole-4-carbaldehyde (CAS 304903-10-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H8N2O and a molecular weight of 124.141 g/mol. It is also known as 1-ETHYL-1H-PYRAZOLE-4-CARBALDEHYDE, 1-ETHYL-1H-PYRAZOLE-4-CARBOXALDEHYDE and 1-ethylpyrazole-4-carbaldehyde. Key properties include a boiling point of 229.9±13.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 92.8±19.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
304903-10-4
Jingsj CID
J-1526119-5
Molecular Formula
C6H8N2O
Chinese Name
1-乙基-1H-吡唑-4-甲醛
Molecular Weight
124.141 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point229.9±13.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point92.8±19.8 °C

Frequently Asked Questions

What is the CAS number of 1-ethyl-1H-pyrazole-4-carbaldehyde?

The CAS number of 1-ethyl-1H-pyrazole-4-carbaldehyde is 304903-10-4.

What are the molecular formula and molecular weight of 1-ethyl-1H-pyrazole-4-carbaldehyde?

1-ethyl-1H-pyrazole-4-carbaldehyde has molecular formula C6H8N2O and molecular weight 124.141 g/mol.

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

Last updated:

How to cite: Jingsj. "1-ethyl-1H-pyrazole-4-carbaldehyde (CAS 304903-10-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1526119-5 (accessed 2026-10-25).

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