571918-80-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 571918-80-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,7,1,9,1 and 8 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 571918-80:
(8*5)+(7*7)+(6*1)+(5*9)+(4*1)+(3*8)+(2*8)+(1*0)=184
184 % 10 = 4
So 571918-80-4 is a valid CAS Registry Number.