5-(2-aminoethyl)-2,3-dihydro-1H-pyrazol-3-one

5-(2-氨乙基)-2,3-二氢-1H-吡唑-3-酮

5-(2-aminoethyl)-2,3-dihydro-1H-pyrazol-3-one (CAS 66643-76-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H9N3O and a molecular weight of 127.14 g/mol. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 66643-76-3
Jingsj CID: J-641496-0
Molecular Formula: C₅H₉N₃O
Chinese Name: 5-(2-氨乙基)-2,3-二氢-1H-吡唑-3-酮
Molecular Weight: 127.14 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Frequently Asked Questions

What is the CAS number of 5-(2-aminoethyl)-2,3-dihydro-1H-pyrazol-3-one?

The CAS number of 5-(2-aminoethyl)-2,3-dihydro-1H-pyrazol-3-one is 66643-76-3.

What are the molecular formula and molecular weight of 5-(2-aminoethyl)-2,3-dihydro-1H-pyrazol-3-one?

5-(2-aminoethyl)-2,3-dihydro-1H-pyrazol-3-one has molecular formula C5H9N3O and molecular weight 127.14 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "5-(2-aminoethyl)-2,3-dihydro-1H-pyrazol-3-one (CAS 66643-76-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-641496-0 (accessed 2026-10-24).

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