856813-22-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 856813-22-4 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 3 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 856813-22:
(8*8)+(7*5)+(6*6)+(5*8)+(4*1)+(3*3)+(2*2)+(1*2)=194
194 % 10 = 4
So 856813-22-4 is a valid CAS Registry Number.