109221-32-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109221-32-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,2,2 and 1 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 109221-32:
(8*1)+(7*0)+(6*9)+(5*2)+(4*2)+(3*1)+(2*3)+(1*2)=91
91 % 10 = 1
So 109221-32-1 is a valid CAS Registry Number.