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55301-50-3

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55301-50-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 55301-50-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,3,0 and 1 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 55301-50:
(7*5)+(6*5)+(5*3)+(4*0)+(3*1)+(2*5)+(1*0)=93
93 % 10 = 3
So 55301-50-3 is a valid CAS Registry Number.

55301-50-3Relevant 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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