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2678-95-7

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2678-95-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 2678-95-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,6,7 and 8 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 2678-95:
(6*2)+(5*6)+(4*7)+(3*8)+(2*9)+(1*5)=117
117 % 10 = 7
So 2678-95-7 is a valid CAS Registry Number.

2678-95-7Relevant articles and documents

BESTIMMUNG DER IONENPAAR-BASIZITAT VON LITHIUM- UND KALIUMAMIDEN

Ahlbrecht, Hubertus,Schneider, Gunther

, p. 4729 - 4742 (2007/10/02)

Ion pair basicities of lithio and potassio salts of some secondary amines were determined by equilibration with benzyl compounds.With these bases it is possible to span a range of about 19 pK-units from pK = 27 up to 46.The structural dependence of thermodynamic as well as kinetic basicity is discussed.Some new effective amide bases for preparative purposes are recommended.For the first time the pK-value of toluene has been determined by direct equilibration.It amounts to 40.7 in tetrahydrofuran.

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