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121648-81-5

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121648-81-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121648-81-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,6,4 and 8 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 121648-81:
(8*1)+(7*2)+(6*1)+(5*6)+(4*4)+(3*8)+(2*8)+(1*1)=115
115 % 10 = 5
So 121648-81-5 is a valid CAS Registry Number.

121648-81-5Downstream Products

121648-81-5Relevant articles and documents

Basicity of substituted 2-phenyl-1,1,3,3-tetramethylguanidines and other bases in acetonitrile solvent

Leffek, Kenneth T.,Pruszynski, Przemyslaw,Thanapaalasingham, Kohila

, p. 590 - 595 (2007/10/02)

A series of 30 phenyl substituted derivatives of 2-phenyl-1,1,3,3-tetramethylguanidine was synthesized and the pKa value of each was measured in acetonitrile using a conventional, general purpose glass electrode.The slope of the Hammett relatio

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