2-Phenyl-2H-1,2,3-triazole

2-苯基-2H-1,2,3-三氮唑

Also known as: 2-Phenyl-1,2,3-triazole, 2-Phenyltriazole, 2-Phenyl-2H-[1,2,3]triazole, 2H-1,2,3-Triazole, 2-phenyl-

2-Phenyl-2H-1,2,3-triazole (CAS 51039-49-7) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H7N3 and a molecular weight of 145.16100 g/mol. It is also known as 2-Phenyl-1,2,3-triazole, 2-Phenyltriazole and 2-Phenyl-2H-[1,2,3]triazole. Key properties include a melting point of 162°C, a boiling point of 280.2ºC at 760 mmHg, a density of 1.16g/cm3 and a flash point of 123.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
51039-49-7
Jingsj CID
J-1044519-4
Molecular Formula
C8H7N3
Chinese Name
2-苯基-2H-1,2,3-三氮唑
Molecular Weight
145.16100 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point162°C
Boiling Point280.2ºC at 760 mmHg
Density1.16g/cm3
Flash Point123.2ºC

Frequently Asked Questions

What is the CAS number of 2-Phenyl-2H-1,2,3-triazole?

The CAS number of 2-Phenyl-2H-1,2,3-triazole is 51039-49-7.

What are the molecular formula and molecular weight of 2-Phenyl-2H-1,2,3-triazole?

2-Phenyl-2H-1,2,3-triazole has molecular formula C8H7N3 and molecular weight 145.16100 g/mol.

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

Last updated:

How to cite: Jingsj. "2-Phenyl-2H-1,2,3-triazole (CAS 51039-49-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1044519-4 (accessed 2026-10-25).

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