4-Vinylbenzo-18-crown-6

Also known as: 18-Vinyl-2,3,5,6,8,9,11,12,14,15-decahydrobenzo[b][1,4,7,10,13,16]hexaoxacyclooctadecine, 18-Ethenyl-2,3,5,6,8,9,11,12,14,15-decahydro-1,4,7,10,13,16-benzohexaoxacyclooctadecin, 20-Ethenyl-2,5,8,11,14,17-hexaoxabicyclo[16.4.0]docosa-1(18),19,21-triene, 4'-Vinylbenzo-18-crown-6, 4-Vinylbenzo-18-crown-6 (97%), MFCD00143381

4-Vinylbenzo-18-crown-6 (CAS 39557-71-6) is a compound in the Ethers category listed in the Jingsj chemical database. It has the molecular formula C18H26O6 and a molecular weight of 338.39500 g/mol. Key properties include a melting point of 57-60ºC, a boiling point of 485.4ºC at 760mmHg, a density of 1.053g/cm3 and a flash point of 199ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 39557-71-6
Jingsj CID: J-37171-1
Molecular Formula: C₁₈H₂₆O₆
Molecular Weight: 338.39500 g/mol
Category: Ethers
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	57-60ºC
Boiling Point	485.4ºC at 760mmHg
Density	1.053g/cm3
Flash Point	199ºC
Exact Mass	338.17300
PSA	55.38000
LogP	2.16720
Refractive Index	1.479

Frequently Asked Questions

What is the CAS number of 4-Vinylbenzo-18-crown-6?

The CAS number of 4-Vinylbenzo-18-crown-6 is 39557-71-6.

What are the molecular formula and molecular weight of 4-Vinylbenzo-18-crown-6?

4-Vinylbenzo-18-crown-6 has molecular formula C18H26O6 and molecular weight 338.39500 g/mol.

What are the upstream and downstream products of 4-Vinylbenzo-18-crown-6?

For 4-Vinylbenzo-18-crown-6, Upstream Products: 4'-Bromobenzo-18-crown-6, Benzo-18-crown-6, 4'-Acetylbenzo-18-crown 6-Ether.

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

Last updated: 8/21/2026

How to cite: Jingsj. "4-Vinylbenzo-18-crown-6 (CAS 39557-71-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-37171-1 (accessed 2026-11-09).

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