1-Methyl-1H-pyrazole-5-carbaldehyde

1-甲基-1H-吡唑-5-甲醛

Also known as: 1-Methylpyrazole-5-carbaldehyde, 1-Methyl-1H-pyrazol-5-carbaldehyde, 1-Methyl-1H-pyrazole-5-carboxaldehyde, 2-Methyl-2H-pyrazole-3-carbaldehyde, 5-Formyl-1-methylpyrazole, 1H-Pyrazole-5-carboxaldehyde, 1-methyl-, 2-Methylpyrazole-3-carbaldehyde, MFCD03419801

1-Methyl-1H-pyrazole-5-carbaldehyde (CAS 27258-33-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H6N2O and a molecular weight of 110.114 g/mol. It is also known as 1-Methylpyrazole-5-carbaldehyde, 1-Methyl-1H-pyrazol-5-carbaldehyde and 1-Methyl-1H-pyrazole-5-carboxaldehyde. Key properties include a boiling point of 218.9±13.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 86.2±19.8 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

27258-33-9

Jingsj CID

J-1523767-1

Molecular Formula

C₅H₆N₂O

Chinese Name

1-甲基-1H-吡唑-5-甲醛

Molecular Weight

110.114 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026