857571-73-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 857571-73-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,7,5,7 and 1 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 857571-73:
(8*8)+(7*5)+(6*7)+(5*5)+(4*7)+(3*1)+(2*7)+(1*3)=214
214 % 10 = 4
So 857571-73-4 is a valid CAS Registry Number.