1-ethyl-5-methyl-1H-pyrazole-4-carbaldehyde

1-乙基-5-甲基-1H-吡唑-4-甲醛

Also known as: 1-ethyl-5-methylpyrazole-4-carbaldehyde, 1-ethyl-1H-5-methyl-pyrazole-4-carbaldehyde, 1-ethyl-5-methyl-4-pyrazolecarboxaldehyde, 1H-pyrazole-4-carboxaldehyde, 1-ethyl-5-methyl-, BB_SC-3692, TIMTEC-BB SBB000014, CHEMBRDG-BB 4001943, ART-CHEM-BB B000393

1-ethyl-5-methyl-1H-pyrazole-4-carbaldehyde (CAS 933778-29-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H10N2O and a molecular weight of 138.167 g/mol. It is also known as 1-ethyl-5-methylpyrazole-4-carbaldehyde, 1-ethyl-1H-5-methyl-pyrazole-4-carbaldehyde and 1-ethyl-5-methyl-4-pyrazolecarboxaldehyde. Key properties include a boiling point of 242.2±20.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 100.3±21.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
933778-29-1
Jingsj CID
J-1103023-0
Molecular Formula
C7H10N2O
Chinese Name
1-乙基-5-甲基-1H-吡唑-4-甲醛
Molecular Weight
138.167 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point242.2±20.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point100.3±21.8 °C

Frequently Asked Questions

What is the CAS number of 1-ethyl-5-methyl-1H-pyrazole-4-carbaldehyde?

The CAS number of 1-ethyl-5-methyl-1H-pyrazole-4-carbaldehyde is 933778-29-1.

What are the molecular formula and molecular weight of 1-ethyl-5-methyl-1H-pyrazole-4-carbaldehyde?

1-ethyl-5-methyl-1H-pyrazole-4-carbaldehyde has molecular formula C7H10N2O and molecular weight 138.167 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-5-methyl-1H-pyrazole-4-carbaldehyde (CAS 933778-29-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1103023-0 (accessed 2026-10-25).

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