641571-06-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 641571-06-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,1,5,7 and 1 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 641571-06:
(8*6)+(7*4)+(6*1)+(5*5)+(4*7)+(3*1)+(2*0)+(1*6)=144
144 % 10 = 4
So 641571-06-4 is a valid CAS Registry Number.