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68714-11-4

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68714-11-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 68714-11-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,7,1 and 4 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 68714-11:
(7*6)+(6*8)+(5*7)+(4*1)+(3*4)+(2*1)+(1*1)=144
144 % 10 = 4
So 68714-11-4 is a valid CAS Registry Number.

68714-11-4Relevant articles and documents

Synthesis and Properties of Sterically Hindered Tertiary Amines and Guanidines

Wieland, Gerhard,Simchen, Gerhard

, p. 2178 - 2193 (2007/10/02)

Sterically hindered tertiary amines 7,8,14,17 are synthesized by reaction of the iminium salts 3,4, and 16 with Grignard compounds 5,12 or alkyllithium compounds 11,13.Hindered guanidines 24 are prepared from chloroformamidinium 22 or (dichloromethane)iminium salts 26 and primary amines 23.The pKa values of the amines 7,8,17, and guanidines 24 are measured, and their alkylation with methyl fluorosulfonate (31) is studied.

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