874497-57-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 874497-57-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,4,4,9 and 7 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 874497-57:
(8*8)+(7*7)+(6*4)+(5*4)+(4*9)+(3*7)+(2*5)+(1*7)=231
231 % 10 = 1
So 874497-57-1 is a valid CAS Registry Number.