857497-03-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 857497-03-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,7,4,9 and 7 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 857497-03:
(8*8)+(7*5)+(6*7)+(5*4)+(4*9)+(3*7)+(2*0)+(1*3)=221
221 % 10 = 1
So 857497-03-1 is a valid CAS Registry Number.