289498-69-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 289498-69-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,8,9,4,9 and 8 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 289498-69:
(8*2)+(7*8)+(6*9)+(5*4)+(4*9)+(3*8)+(2*6)+(1*9)=227
227 % 10 = 7
So 289498-69-7 is a valid CAS Registry Number.