689279-93-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 689279-93-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,9,2,7 and 9 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 689279-93:
(8*6)+(7*8)+(6*9)+(5*2)+(4*7)+(3*9)+(2*9)+(1*3)=244
244 % 10 = 4
So 689279-93-4 is a valid CAS Registry Number.