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diphenyl 9H-fluorene-2,7-disulfonate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

253448-82-7

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253448-82-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 253448-82-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,3,4,4 and 8 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 253448-82:
(8*2)+(7*5)+(6*3)+(5*4)+(4*4)+(3*8)+(2*8)+(1*2)=147
147 % 10 = 7
So 253448-82-7 is a valid CAS Registry Number.

253448-82-7Upstream product

253448-82-7Relevant academic research and scientific papers

Symmetric anionic polymethine dyes derived from fluorene and its derivatives with electron-acceptor substituents: Synthesis and spectral properties

Kurdyukova,Derevyanko,Ishchenko,Mysyk

, p. 287 - 297 (2013/07/11)

Novel anionic polymethine dyes were synthesized from 2,7- bis(phenoxysulfonyl)-, 2,7-dinitro-, and 2,4,5,7-tetranitrofluorenes. The reasons for the complicated shape of their absorption spectra were analyzed: the formation of contact ion pairs, associates

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