1,2,4-Triazolo[4,3-a]pyridin-3(2H)-one

1,2,4-三唑并[4,3-a]吡啶-3(2H)-酮

Also known as: [1,2,4]Triazolo[4,3-a]pyridin-3(2H)-one, 1,2,4-Triazol-(4,3-a)-pyridine 3(2H)-one, 1,2,4-Triazole(4,3)pyridin-3-(2H)-one, 1,2,4-Triazolo-[4,3-a]pyridine-3(2H)-one, 1,2,4-Triazole-(4,3-alpha)pyridine, 1,2,4-Triazolopyridin-3-one, 2H-[1,2,4]triazolo[4,3-a]pyridin-3-one, 3-Hydroxy-1,2,4-triazolo[4,3-a]pyridine, 3-Hydroxytriazolo[4,3-a]pyridine, Trazodone Impurity 15

1,2,4-Triazolo[4,3-a]pyridin-3(2H)-one (CAS 6969-71-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H5N3O and a molecular weight of 135.123 g/mol. It is also known as [1,2,4]Triazolo[4,3-a]pyridin-3(2H)-one, 1,2,4-Triazol-(4,3-a)-pyridine 3(2H)-one and 1,2,4-Triazole(4,3)pyridin-3-(2H)-one. Key properties include a melting point of 231°C and a density of 1.5±0.1 g/cm3. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

6969-71-7

Jingsj CID

J-897989-0

Molecular Formula

C₆H₅N₃O

Chinese Name

1,2,4-三唑并[4,3-a]吡啶-3(2H)-酮

Molecular Weight

135.123 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026