156273-71-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156273-71-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,2,7 and 3 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 156273-71:
(8*1)+(7*5)+(6*6)+(5*2)+(4*7)+(3*3)+(2*7)+(1*1)=141
141 % 10 = 1
So 156273-71-1 is a valid CAS Registry Number.
156273-71-1Relevant articles and documents
Synthesis of 4- and 5-disubstituted 1-benzylimidazoles, important precursors of purine analogs
Alves,Fernanda,Proenca,Booth
, p. 345 - 350 (1994)
(Z)-N-(2-amino-1,2-dicyanovinyl)-N'-benzylformamidine 6 has been prepared both from the reaction of benzylisonitrile with the hydrochloride salt of diaminomaleonitrile and from reaction of ethyl (Z)-N-(2-amino-1,2-dicyanovinyl)formimidate with benzylamine