2-(2-Pyridylazo)-1-naphthol

2-(2-吡啶偶氮)-1-萘酚

Also known as: (2E)-2-(pyridin-2-ylhydrazinylidene)naphthalen-1-one, 1-Naphthalenol, 2-[2-(2-pyridinyl)diazenyl]-, 2-(2-PYRIDYLAZO)-1-NAPHTHOL, 2-(2-Pyridylazo)-1-naphthol indicator, 2-(2-pyridylazo)-1-naphthol95+%, 2-pyridin-2-ylazo-naphthalen-1-ol, HMS2387P06, ISOPAN

2-(2-Pyridylazo)-1-naphthol (CAS 10335-31-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C15H11N3O and a molecular weight of 249.26700 g/mol. It is also known as (2E)-2-(pyridin-2-ylhydrazinylidene)naphthalen-1-one, 1-Naphthalenol, 2-[2-(2-pyridinyl)diazenyl]- and 2-(2-PYRIDYLAZO)-1-NAPHTHOL. Key properties include a melting point of 124-128ºC, a boiling point of 444.8ºC at 760 mmHg, a density of 1.24g/cm3 and a flash point of 222.8ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

10335-31-6

Jingsj CID

J-13589-6

Molecular Formula

C₁₅H₁₁N₃O

Chinese Name

2-(2-吡啶偶氮)-1-萘酚

Molecular Weight

249.26700 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026