109682-65-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109682-65-7 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 2 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 109682-65:
(8*1)+(7*0)+(6*9)+(5*6)+(4*8)+(3*2)+(2*6)+(1*5)=147
147 % 10 = 7
So 109682-65-7 is a valid CAS Registry Number.