874520-51-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 874520-51-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,4,5,2 and 0 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 874520-51:
(8*8)+(7*7)+(6*4)+(5*5)+(4*2)+(3*0)+(2*5)+(1*1)=181
181 % 10 = 1
So 874520-51-1 is a valid CAS Registry Number.