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ethynylpyrene

Also known as: (1-Pyrenyl)acetylene, 1-ETHYNYLPYRENE, 1-Ethynyl Pyrene, 1-Ethynylpyrene, 1-Ethynylpyrene>Pyrene, 1-ethynyl-, 1-Pyrenylacetylene, 1-ethynylpyrene, 1-pyrenylacetylene, 1A1,P450,1 Ethynylpyrene,2B1,1-Ethynylpyrene,Inhibitor,CYPs,Cytochrome P450,1Ethynylpyrene,inhibit,1A2,cytochromes, 3-pyrenylacetylene, 8-ethynylpyrene, MFCD02093933, Pyrene, 1-ethynyl-, Pyrene,1-ethynyl, ethynyl pyrene, pyrene-1-acetylene

ethynylpyrene (CAS 34993-56-1) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C18H10 and a molecular weight of 226.272 g/mol. Key properties include a melting point of 113-115ºC, a boiling point of 410.6±14.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 194.9±14.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
34993-56-1
Jingsj CID
J-38478-1
Molecular Formula
C18H10
Molecular Weight
226.272 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point113-115ºC
Boiling Point410.6±14.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point194.9±14.2 °C
Exact Mass226.078247
LogP5.35
Vapor Pressure0.0±0.5 mmHg at 25°C
Refractive Index1.807

Activity & Biological Data

Additional Information[1]. Naijue Zhu, et al. Ethynyl and Propynylpyrene Inhibitors of Cytochrome P450. J Chem Crystallogr. 2010 Apr 1;40(4):343-352.

Customs & Trade Information

HS Code2902909090
Summary2902909090 other aromatic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of ethynylpyrene?

The CAS number of ethynylpyrene is 34993-56-1.

What are the molecular formula and molecular weight of ethynylpyrene?

ethynylpyrene has molecular formula C18H10 and molecular weight 226.272 g/mol.

What are the upstream and downstream products of ethynylpyrene?

For ethynylpyrene, Upstream Products: 1-Bromopyrene, 1-Pyrenecarboxaldehyde, Dimethyl (1-diazo-2-oxopropyl)phosphonate; Downstream Products: Cyclopenta[cd]pyrene.

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

Last updated:

How to cite: Jingsj. "ethynylpyrene (CAS 34993-56-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-38478-1 (accessed 2026-11-09).

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