689299-05-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 689299-05-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,9,2,9 and 9 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 689299-05:
(8*6)+(7*8)+(6*9)+(5*2)+(4*9)+(3*9)+(2*0)+(1*5)=236
236 % 10 = 6
So 689299-05-6 is a valid CAS Registry Number.