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2-Ethynylquinoline

Also known as: 2-Ethynylquinoline, 2-Ethynyl-Quinoline, 2-ETHYNYL-QUINOLINE, 2-Ethinyl-5,6-benzopyridin, 2-Ethinylchinolin, F-1575, Quinoline, 2-ethynyl-, Quinoline,2-ethynyl-

2-Ethynylquinoline (CAS 40176-78-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H7N and a molecular weight of 153.18000 g/mol. Key properties include a boiling point of 282.424ºC at 760 mmHg, a density of 1.136g/cm3 and a flash point of 119.992ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
40176-78-1
Jingsj CID
J-1104608-5
Molecular Formula
C11H7N
Molecular Weight
153.18000 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026
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Physicochemical Properties

Boiling Point282.424ºC at 760 mmHg
Density1.136g/cm3
Flash Point119.992ºC
Exact Mass153.05800
PSA12.89000
LogP2.21610
Refractive Index1.65

Customs & Trade Information

HS Code2933499090
Summary2933499090. other compounds containing in the structure a quinoline or isoquinoline ring-system (whether or not hydrogenated), not further fused. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 2-Ethynylquinoline?

The CAS number of 2-Ethynylquinoline is 40176-78-1.

What are the molecular formula and molecular weight of 2-Ethynylquinoline?

2-Ethynylquinoline has molecular formula C11H7N and molecular weight 153.18000 g/mol.

What are the upstream and downstream products of 2-Ethynylquinoline?

For 2-Ethynylquinoline, Upstream Products: 2-[(Trimethylsilyl)ethynyl]quinoline, 2-Quinolinecarboxaldehyde, 2-Chloroquinoline; Downstream Products: 2,2'-Biquinoline, 1-(Quinolin-2-yl)ethanone.

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

Last updated:

How to cite: Jingsj. "2-Ethynylquinoline (CAS 40176-78-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1104608-5 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.