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109282-23-7

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109282-23-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 109282-23-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,2,8 and 2 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 109282-23:
(8*1)+(7*0)+(6*9)+(5*2)+(4*8)+(3*2)+(2*2)+(1*3)=117
117 % 10 = 7
So 109282-23-7 is a valid CAS Registry Number.

109282-23-7Downstream Products

109282-23-7Relevant academic research and scientific papers

Investigation of the 2,7-Dihalofluorenylidenes: Search for Heavy Atom Effects in the Reactions of Triplet Carbenes

Rak, Stanton F.,Lapin, Stephen C.,Falvey, Daniel E.,Schuster, Gary B.

, p. 5003 - 5008 (2007/10/02)

The properties of the 2,7-dihalofluorenylidenes (Cl, Br, I) were examined by laser and EPR spectroscopy and by conventional chemical analyses.Their reactions with alcohols and olefins were studied.No evidence was found for the operation of a heavy atom effect in their reaction with methyl alcohol.Analysis of the kinetic and product results indicates an energy gap between the triplet (ground state) and the singlet for the three dihalofluorenylidenes of 4.2 +/- 0.5 kcal/mol, ca. twice the value of fluorenylidene itself.

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