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  • China Biggest factory Supply High Quality 2,2'-DIBROMO-9,9'-SPIROBIFLUORENE CAS 67665-47-8

    Cas No: 67665-47-8

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67665-47-8 Usage

Chemical Properties

off-white powder

Check Digit Verification of cas no

The CAS Registry Mumber 67665-47-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,6,6 and 5 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 67665-47:
168 % 10 = 8
So 67665-47-8 is a valid CAS Registry Number.

67665-47-8 Well-known Company Product Price

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  • TCI America

  • (D3872)  2,2'-Dibromo-9,9'-spirobi[9H-fluorene]  >95.0%(GC)

  • 67665-47-8

  • 1g

  • 5,600.00CNY

  • Detail



According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017


1.1 GHS Product identifier

Product name 2,2'-Dibromo-9,9'-spirobi[9<i>H</i>-fluorene]

1.2 Other means of identification

Product number -
Other names 2,2'-dibromo-9,9'-spirobi[fluorene]

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:67665-47-8 SDS

67665-47-8Relevant articles and documents

Synthesis and characterization of spiro-linked poly(terfluorene): A blue-emitting polymer with controlled conjugated length

Wu, Fang-Iy,Dodda, Rajasekhar,Reddy, D. Sahadeva,Shu, Ching-Fong

, p. 2893 - 2897 (2002)

The synthesis and characterization of a fluorene-spirobifluorene alternating copolymer, P(OF-SBF), are described. In the case of the spiro-segment, the two fluorene rings are orthogonally arranged and connected through a tetrahedral bonding carbon atom (t

Improved synthesis of 2,2′-Dibromo-9,9′-spirobifluorene and its 2,2′-bisdonor-7,7′-bisacceptor-substituted fluorescent derivatives

Chiang, Chih-Long,Shu, Ching-Fong,Chen, Chin-Ti

, p. 3717 - 3720 (2007/10/03)

(Chemical Equation Presented) Pure 2,2′-Dibromo-9,9′- spirobifluorene was synthesized by a method that did not involve troublesome dibromination of 9,9′-spirobifluorene or Sandmeyer reaction of 2,2′-diamino-9,9′-spirobifluorene. A series of donor-acceptor orthogonally substituted 9,9′-spirobifluorene was subsequently prepared showing rich variation of fluorescence in solution and in solid state.

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