689767-09-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 689767-09-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,9,7,6 and 7 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 689767-09:
(8*6)+(7*8)+(6*9)+(5*7)+(4*6)+(3*7)+(2*0)+(1*9)=247
247 % 10 = 7
So 689767-09-7 is a valid CAS Registry Number.