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1-(prop-2-yn-1-yl)-1H-benzo[d][1,2,3]triazole

1-(2-丙炔基)-1H-苯并三唑

Also known as: 1-(2-Propynyl)-1H-benzotriazole, 1-Propargyl-1H-benzotriazole, 1-(2-propynyl)benzotriazole, 1-(prop-2-ynyl)-1H-benzo[d][1,2,3]triazole, 1H-Benzotriazole, 1-(2-propyn-1-yl)-

1-(prop-2-yn-1-yl)-1H-benzo[d][1,2,3]triazole (CAS 142321-23-1) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C9H7N3 and a molecular weight of 157.17200 g/mol. It is also known as 1-(2-Propynyl)-1H-benzotriazole, 1-Propargyl-1H-benzotriazole and 1-(2-propynyl)benzotriazole. Key properties include a melting point of 52-56ºC(lit.), a boiling point of 302.2ºC at 760 mmHg, a density of 1.12g/cm3 and a flash point of 136.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
142321-23-1
Jingsj CID
J-1082783-9
Molecular Formula
C9H7N3
Chinese Name
1-(2-丙炔基)-1H-苯并三唑
Molecular Weight
157.17200 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point52-56ºC(lit.)
Boiling Point302.2ºC at 760 mmHg
Density1.12g/cm3
Flash Point136.6ºC

Frequently Asked Questions

What is the CAS number of 1-(prop-2-yn-1-yl)-1H-benzo[d][1,2,3]triazole?

The CAS number of 1-(prop-2-yn-1-yl)-1H-benzo[d][1,2,3]triazole is 142321-23-1.

What are the molecular formula and molecular weight of 1-(prop-2-yn-1-yl)-1H-benzo[d][1,2,3]triazole?

1-(prop-2-yn-1-yl)-1H-benzo[d][1,2,3]triazole has molecular formula C9H7N3 and molecular weight 157.17200 g/mol.

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

Last updated:

How to cite: Jingsj. "1-(prop-2-yn-1-yl)-1H-benzo[d][1,2,3]triazole (CAS 142321-23-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1082783-9 (accessed 2026-10-24).

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