698390-57-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 698390-57-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,8,3,9 and 0 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 698390-57:
(8*6)+(7*9)+(6*8)+(5*3)+(4*9)+(3*0)+(2*5)+(1*7)=227
227 % 10 = 7
So 698390-57-7 is a valid CAS Registry Number.