189571-53-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 189571-53-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,5,7 and 1 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 189571-53:
(8*1)+(7*8)+(6*9)+(5*5)+(4*7)+(3*1)+(2*5)+(1*3)=187
187 % 10 = 7
So 189571-53-7 is a valid CAS Registry Number.