189103-83-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 189103-83-1 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 3 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 189103-83:
(8*1)+(7*8)+(6*9)+(5*1)+(4*0)+(3*3)+(2*8)+(1*3)=151
151 % 10 = 1
So 189103-83-1 is a valid CAS Registry Number.