109680-72-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109680-72-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,6,8 and 0 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 109680-72:
(8*1)+(7*0)+(6*9)+(5*6)+(4*8)+(3*0)+(2*7)+(1*2)=140
140 % 10 = 0
So 109680-72-0 is a valid CAS Registry Number.