5-(4-aminophenyl)-2,4-dihydro-3H-pyrazol-3-one

5-(4-氨基苯基)-2,4-二氢-3H-吡唑-3-酮

Also known as: 3-(4-aminophenyl)-1H-pyrazol-5(4H)-one, 3-(4-aminophenyl)-1,4-dihydropyrazol-5-one, 3-(4-aminophenyl)-4,5-dihydro-1H-pyrazol-5-one, 3H-pyrazol-3-one, 5-(4-aminophenyl)-2,4-dihydro-, 5-(4-aminophenyl)-2,4-dihydro-3H-pyrazol-3-one, 5-(4-aminophenyl)-2,4-dihydro-3H-pyrazol-3-one(SALTDATA: FREE), CHEMBRDG-BB 4011498, Albb-010149

5-(4-aminophenyl)-2,4-dihydro-3H-pyrazol-3-one (CAS 103755-57-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H9N3O and a molecular weight of 175.18700 g/mol. It is also known as 3-(4-aminophenyl)-1H-pyrazol-5(4H)-one, 3-(4-aminophenyl)-1,4-dihydropyrazol-5-one and 3-(4-aminophenyl)-4,5-dihydro-1H-pyrazol-5-one. Key property: a density of 1.41g/cm3. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

103755-57-3

Jingsj CID

J-1512005-4

Molecular Formula

C₉H₉N₃O

Chinese Name

5-(4-氨基苯基)-2,4-二氢-3H-吡唑-3-酮

Molecular Weight

175.18700 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026