[2,5]-Dibenzo-21-crown-7

[2,5]-二苯并-21-冠-7

Also known as: Dibenzo[b,h][1,4,7,10,13,16,19]heptaoxacycloheneicosin, 6,7,9,10,12,13,15,16,23,24-decahydro-, MFCD00188441

[2,5]-Dibenzo-21-crown-7 (CAS 133560-78-8) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C22H28O7 and a molecular weight of 404.45400 g/mol. It is also known as Dibenzo[b,h][1,4,7,10,13,16,19]heptaoxacycloheneicosin, 6,7,9,10,12,13,15,16,23,24-decahydro- and MFCD00188441. Key properties include a melting point of 48-52ºC, a boiling point of 545.9ºC at 760 mmHg, a density of 1.094g/cm3 and a flash point of 220.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
133560-78-8
Jingsj CID
J-11983-2
Molecular Formula
C22H28O7
Chinese Name
[2,5]-二苯并-21-冠-7
Molecular Weight
404.45400 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point48-52ºC
Boiling Point545.9ºC at 760 mmHg
Density1.094g/cm3
Flash Point220.4ºC

Frequently Asked Questions

What is the CAS number of [2,5]-Dibenzo-21-crown-7?

The CAS number of [2,5]-Dibenzo-21-crown-7 is 133560-78-8.

What are the molecular formula and molecular weight of [2,5]-Dibenzo-21-crown-7?

[2,5]-Dibenzo-21-crown-7 has molecular formula C22H28O7 and molecular weight 404.45400 g/mol.

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

Last updated:

How to cite: Jingsj. "[2,5]-Dibenzo-21-crown-7 (CAS 133560-78-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-11983-2 (accessed 2026-10-22).

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