874513-91-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 874513-91-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,4,5,1 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 874513-91:
(8*8)+(7*7)+(6*4)+(5*5)+(4*1)+(3*3)+(2*9)+(1*1)=194
194 % 10 = 4
So 874513-91-4 is a valid CAS Registry Number.