74729-65-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74729-65-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,7,2 and 9 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 74729-65:
(7*7)+(6*4)+(5*7)+(4*2)+(3*9)+(2*6)+(1*5)=160
160 % 10 = 0
So 74729-65-0 is a valid CAS Registry Number.
74729-65-0Relevant articles and documents
Synthesis of Heteroaromatic Substituted Ureas and Chloroformamidines
Ried, Walter,Christ, Rainer
, p. 693 - 698 (2007/10/02)
Curtius degradation of heteroaromatic carbonyl azides leads to isocyanates, which react with amines to give the trisubstituted ureas 1.Some of these can be converted into the corresponding chloroformamidines 2 by chlorination with CCl4/(C6H5)3P.
