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2,2',7,7'-Tetrabromo-9,9'-bifluorenylidene

Also known as: 2,2',7,7'-Tetrabromo-9,9'-bifluorenylidene, 2,7,2',7'-Tetrabromo-[9,9']bifluorenylidene, 2,7-dibromo-9-(2,7-dibromo-9H-fluoren-9-ylidene)-9H-fluorene, 2,7-dibromo-9-(2,7-dibromofluoren-9-ylidene)fluorene, 2,2',7,7'-Tetrabromo-9,9'-bifluoroenylidene, 9H-Fluorene, 2,7-dibromo-9-(2,7-dibromo-9H-fluoren-9-ylidene)-

2,2',7,7'-Tetrabromo-9,9'-bifluorenylidene (CAS 27192-91-2) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C26H12Br4 and a molecular weight of 643.990 g/mol. Key properties include a melting point of 455 °C, a boiling point of 655.5±55.0 °C at 760 mmHg, a density of 2.0±0.1 g/cm3 and a flash point of 334.8±26.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
27192-91-2
Jingsj CID
J-1482556-0
Molecular Formula
C26H12Br4
Molecular Weight
643.990 g/mol
Category
Organohalogen Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point455 °C
Boiling Point655.5±55.0 °C at 760 mmHg
Density2.0±0.1 g/cm3
Flash Point334.8±26.2 °C
Exact Mass639.767212
LogP12.29
Vapor Pressure0.0±1.9 mmHg at 25°C
Refractive Index1.779

Frequently Asked Questions

What is the CAS number of 2,2',7,7'-Tetrabromo-9,9'-bifluorenylidene?

The CAS number of 2,2',7,7'-Tetrabromo-9,9'-bifluorenylidene is 27192-91-2.

What are the molecular formula and molecular weight of 2,2',7,7'-Tetrabromo-9,9'-bifluorenylidene?

2,2',7,7'-Tetrabromo-9,9'-bifluorenylidene has molecular formula C26H12Br4 and molecular weight 643.990 g/mol.

What are the upstream and downstream products of 2,2',7,7'-Tetrabromo-9,9'-bifluorenylidene?

For 2,2',7,7'-Tetrabromo-9,9'-bifluorenylidene, Upstream Products: 9-(9H-Fluoren-9-yliden)-9H-fluoren, 2,7-Dibromo-9-fluorenone; Downstream Products: 2,7-Dibromofluorene.

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

Last updated:

How to cite: Jingsj. "2,2',7,7'-Tetrabromo-9,9'-bifluorenylidene (CAS 27192-91-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1482556-0 (accessed 2026-11-09).

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