189102-22-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 189102-22-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,1,0 and 2 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 189102-22:
(8*1)+(7*8)+(6*9)+(5*1)+(4*0)+(3*2)+(2*2)+(1*2)=135
135 % 10 = 5
So 189102-22-5 is a valid CAS Registry Number.