1,3,5-Trimethyl-1H-pyrazole-4-carbaldehyde

1,3,5-三甲基-1H-吡唑-4-甲醛

Also known as: 1,3,5-Trimethyl-1H-pyrazole-4-carboxaldehyde, 1,3,5-Trimethylpyrazole-4-carbaldehyde, 4-Formyl-1,3,5-trimethylpyrazole, 1,3,5-Trimethyl-4-formylpyrazole, 1H-Pyrazole-4-carboxaldehyde, 1,3,5-trimethyl-

1,3,5-Trimethyl-1H-pyrazole-4-carbaldehyde (CAS 2644-93-1) 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 1,3,5-Trimethyl-1H-pyrazole-4-carboxaldehyde, 1,3,5-Trimethylpyrazole-4-carbaldehyde and 4-Formyl-1,3,5-trimethylpyrazole. Key properties include a melting point of 71 °C, a boiling point of 240.6±35.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 99.3±25.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2644-93-1
Jingsj CID
J-49512-1
Molecular Formula
C7H10N2O
Chinese Name
1,3,5-三甲基-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

Melting Point71 °C
Boiling Point240.6±35.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point99.3±25.9 °C

Frequently Asked Questions

What is the CAS number of 1,3,5-Trimethyl-1H-pyrazole-4-carbaldehyde?

The CAS number of 1,3,5-Trimethyl-1H-pyrazole-4-carbaldehyde is 2644-93-1.

What are the molecular formula and molecular weight of 1,3,5-Trimethyl-1H-pyrazole-4-carbaldehyde?

1,3,5-Trimethyl-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. "1,3,5-Trimethyl-1H-pyrazole-4-carbaldehyde (CAS 2644-93-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-49512-1 (accessed 2026-10-22).

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