697249-57-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 697249-57-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,7,2,4 and 9 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 697249-57:
(8*6)+(7*9)+(6*7)+(5*2)+(4*4)+(3*9)+(2*5)+(1*7)=223
223 % 10 = 3
So 697249-57-3 is a valid CAS Registry Number.