53723-90-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 53723-90-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,3,7,2 and 3 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 53723-90:
(7*5)+(6*3)+(5*7)+(4*2)+(3*3)+(2*9)+(1*0)=123
123 % 10 = 3
So 53723-90-3 is a valid CAS Registry Number.
53723-90-3Relevant articles and documents
1-Aza-1',3'-diaza-3,3'-sigmatropic rearrangements - A convenient synthesis of benzimidazole derivatives
Teresa,Carvalho,Lobo, Ana M.,Branco, Paula S.,Prabhakar, Sundaresan
, p. 3115 - 3118 (2007/10/03)
1-Aryl-2-acyl-2-cyanohydrazines undergo smooth thermal rearrangements to provide 2-aminoacylbenzimidazoles in excellent yields. A short synthesis of the highly mutagenic dietary amine, IQ, is reported.
