1H-Indene, 2-ethynyl- (9CI)

(9ci)-2-乙炔-1H-茚

Also known as: 1H-Indene,2-ethynyl, 2-Ethinyl-1H-inden, 2-Ethinylinden, 2-ethynyl-1H-indene

1H-Indene, 2-ethynyl- (9CI) (CAS 74010-34-7) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C11H8 and a molecular weight of 140.18100 g/mol. It is also known as 1H-Indene,2-ethynyl, 2-Ethinyl-1H-inden and 2-Ethinylinden. Key properties include a boiling point of 222.5ºC at 760 mmHg, a density of 1.06g/cm3 and a flash point of 76.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
74010-34-7
Jingsj CID
J-1396319-2
Molecular Formula
C11H8
Chinese Name
(9ci)-2-乙炔-1H-茚
Molecular Weight
140.18100 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point222.5ºC at 760 mmHg
Density1.06g/cm3
Flash Point76.5ºC

Frequently Asked Questions

What is the CAS number of 1H-Indene, 2-ethynyl- (9CI)?

The CAS number of 1H-Indene, 2-ethynyl- (9CI) is 74010-34-7.

What are the molecular formula and molecular weight of 1H-Indene, 2-ethynyl- (9CI)?

1H-Indene, 2-ethynyl- (9CI) has molecular formula C11H8 and molecular weight 140.18100 g/mol.

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

Last updated:

How to cite: Jingsj. "1H-Indene, 2-ethynyl- (9CI) (CAS 74010-34-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1396319-2 (accessed 2026-10-24).

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