109732-45-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109732-45-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,7,3 and 2 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 109732-45:
(8*1)+(7*0)+(6*9)+(5*7)+(4*3)+(3*2)+(2*4)+(1*5)=128
128 % 10 = 8
So 109732-45-8 is a valid CAS Registry Number.