1-Ethyl-1H-pyrazol-5-amine

5-氨基-1-乙基吡唑

Also known as: 5-Amino-1-ethylpyrazole, 1-Ethyl-5-aminopyrazole, 1-Ethylpyrazole-5-ylamine, 2-Ethylpyrazol-3-amine, 2-Ethyl-2H-pyrazol-3-ylamine, 1-Ethyl-1H-pyrazol-5-ylamine, 5-Amino-1-ethyl-1H-pyrazole, 1H-Pyrazol-5-amine, 1-ethyl-, NSC 354694

1-Ethyl-1H-pyrazol-5-amine (CAS 3528-58-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H9N3 and a molecular weight of 111.145 g/mol. It is also known as 5-Amino-1-ethylpyrazole, 1-Ethyl-5-aminopyrazole and 1-Ethylpyrazole-5-ylamine. Key properties include a melting point of 52-57 °C(lit.), a boiling point of 238.6±13.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 98.1±19.8 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

3528-58-3

Jingsj CID

J-12867-4

Molecular Formula

C₅H₉N₃

Chinese Name

5-氨基-1-乙基吡唑

Molecular Weight

111.145 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026