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82947-39-5

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82947-39-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 82947-39-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,9,4 and 7 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 82947-39:
(7*8)+(6*2)+(5*9)+(4*4)+(3*7)+(2*3)+(1*9)=165
165 % 10 = 5
So 82947-39-5 is a valid CAS Registry Number.

82947-39-5Downstream Products

82947-39-5Relevant articles and documents

Diels-alder reactions with 2,2-bis (trifluoromethyl)-ethylene-1,1-dicarbonitrile as dienophile

Brueckner, Reinhard,Huisgen, Rolf

, p. 3285 - 3288 (2007/10/02)

In the cycloadditions of the title compound BTF to methylated and phenylated butadienes, NMR spectra of adducts allow to draw the demarcation line between [4+2] and [2+2] cycloadditions. 1-Substituted butadienes accept BTF in the direction less hindered by the bulky CF3groups. In rate comparison with TCNE, BTF shows electronic acceleration and steric deceleration.

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