720669-49-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 720669-49-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,2,0,6,6 and 9 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 720669-49:
(8*7)+(7*2)+(6*0)+(5*6)+(4*6)+(3*9)+(2*4)+(1*9)=168
168 % 10 = 8
So 720669-49-8 is a valid CAS Registry Number.