190517-34-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 190517-34-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,0,5,1 and 7 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 190517-34:
(8*1)+(7*9)+(6*0)+(5*5)+(4*1)+(3*7)+(2*3)+(1*4)=131
131 % 10 = 1
So 190517-34-1 is a valid CAS Registry Number.