856815-76-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 856815-76-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,6,8,1 and 5 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 856815-76:
(8*8)+(7*5)+(6*6)+(5*8)+(4*1)+(3*5)+(2*7)+(1*6)=214
214 % 10 = 4
So 856815-76-4 is a valid CAS Registry Number.