697289-63-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 697289-63-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,7,2,8 and 9 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 697289-63:
(8*6)+(7*9)+(6*7)+(5*2)+(4*8)+(3*9)+(2*6)+(1*3)=237
237 % 10 = 7
So 697289-63-7 is a valid CAS Registry Number.