134577-50-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 134577-50-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,5,7 and 7 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 134577-50:
(8*1)+(7*3)+(6*4)+(5*5)+(4*7)+(3*7)+(2*5)+(1*0)=137
137 % 10 = 7
So 134577-50-7 is a valid CAS Registry Number.
134577-50-7Relevant articles and documents
A new synthesis of 2-aryl-2H-pyrazino[2,1-b]quinazolin-3,6(1H,4H)-diones
Reddy,Nagaraju Ch.
, p. 173 - 181 (1991)
A new synthesis of 2-aryl-2H-pyrazino [2,1-b]quinazolin-3,6(1H,4H)-diones starting from 2-chloromethylquinazolin-4(3H)-one is described.
